User`s Manual - area of DHI
Contents
1. Line or Polygon X coordinate column Column containing X coordinate values Y coordinate column Column containing Y coordinate values Z coordinate column Column containing Z coordinate values Given this information the table can be trans formed and or the geometry displayed making the data available as reference map The table can be reconverted to a dBase or an ASCII file anytime using Save as 3 1 6 Georeferencing Map menu Georeferencing Bi Add a new reference point with window center coordinate values to the work map World coordinates can be entered manually or retrieved from a point on the reference map by double clicking that point x Delete previously selected reference point Minimize dialog window to restore dou ble click the minimized window or Fenster wiederherstellen minimiertes Fenster doppelk licken or click and select restore Close Closes dialog Starts referencing process In batch mode the Start button is relabeled to Batch and pushing it adds the current task to the batch Processing com mences once the batch file is started Start Loads a world file for georeferencing imports data from WGEO MAP file ESRI world file Maplnfo tab file or from a regular text file Import Saves a world file exports data to WGEO MAP file ESRI world file or Mapinfo tab file Opens a dialog displaying the result of the selected rectification for a regul2. Status License Features Server Host ID ean License type Metzwerklizenz w Program wgeo 40x v 22 10 2003 v Version Expiration Install Seats 2 S I146247WAST w ODD1B617E5C2DC54F1D31545 Options Keycode Entering license information Each WASY license includes eight parameters They are to be entered as follows e Server host ID Each license is tied to a spe cific license server identified by a unique HOSTID As this ID is supplied by the hard ware dongle using the correct dongle is es sential when installing a new license This pa rameter is not editable e License type Licenses are either of network or of single seat type e Application Enter the name of the software application without the exe extension that is to be licensed The name is not case sensitive e Version The licensed version of the applica tion The x is a wildcard character represent ing an arbitrary numeral All versions up to the entered version number x is internally re placed by 9 can use this license 12 User s Manual e Expiration date For time limited licenses the date of expiration otherwise Unlimited Valid formats include a dd mmm yyyy 31 mar 2002 b yyyy mm dd 2002 03 31 c dd mmm yyyy 31 03 2002 dd day mmm month yyyy year e Number of licenses Number of simultane ously usable licenses e Options A string of characters indicating the mo
3. User s Manual Image 1 Image 2 y Input y Regular partitioning w 300 000 h 150 000 amp 75 000 b 50 000 wa 3 ma Defintion Directory and prefix File prefix IMG Y Results w 300 IMG_0102 IMG_0103 IMG_0104 IMG_0202 IMG 0203 IMG 0204 IMG_0302 IMG_0303 IMG_0304 a 75 l n 4 mosaics in X orientation Figure Example of user defined tiling 3 mosaics in Y orientation m Batch Processing 4 1 Batch mode task description Rectify image Georeferencing of an image re quires reference points with geographic coordi nates Based on these the image will be rotated and rectified as needed using one of three pos sible referencing methods Depending on the task in Batch mode or during Save as the coordinates are saved with the image GeoTIFF or in an additional geotransformation control world file map tfw tab Transform coordinate system Georeferenced images TIFF JPEG BMP vector data ESRI shapes amp DXF and user specific formats can be transformed to a different coordinate system See Transformation Convert and modify image Different functions can be applied to an image including rotation in 90 degree increments change of color depth color inversion change of image format e g TIFF to JPEG change of compression type change of transformation format map tfw tab Cut or crop image using poly
4. Trapezoidal rectification lt Back returns to Output rules dialog Pressing Finish gt applies all settings to the batch file Batch control dialog 46 User s Manual
5. and edit own files but saving is restricted to the withcoming example files only Name Manfred Mustermann Organization Company Serial number Product key Cancel 2 2 3 Network license Connecting to the license server If WGEO 4 0 is licensed by a floating network license this dialog serves to select the license server that manages the licenses All available licenses are displayed in the dialog as soon as a connection to the server is established To connect to the license server e Enter the license manager Hostname If the local computer serves as license manager en ter localhost if no local license manager in stallation is found a dialog is displayed from which a local installation can be started e Push the Connect button Upon successful connection the license server host identifica tion HOSTID is displayed An error message is displayed should the connection attempt fail License Information x The currently installed licenses of the license Standard Network User License Status server are listed in table format see also above ale Se concerning the applications The following col PAddess TE umns are shown Number HOSTIO 72701678 on l RTA ATENE Application Name of the licensed applica Program Version Options Seats Free tion Renaming the application has no effect wo A Al 2 1 on this value e Version Licensed version of the application x is a
6. box allows modification of target directory and output file names As shown below various string variables are provided for this purpose Directory Input Input directory e g Input Dir e basis input Output Target directory selected via Browse e g OutputDir e basis output Temporary Directory for temporary files as specified via Windows Control panel e g TempDir e temp WGEO 4 0 43 File Path Input directory file title file extension e g Path e basis input raster tif Name File title file extension e g Name raster tif Title File title e g Title raster Extension File extension e g Ext tif Example The string InputDir Title _tr Ext results in an output file e basis input raster_tr tif Note that _tr has been manually added by key board Recursively loaded files To save output from recursively loaded files to a new directory tree variable contents must be modified accordingly similar to search and re place Syntax Variable separator old string new string e g Path input newname e basis newname raster tif 44 User s Manual Notes If only the path variable Path is specified in the File combo box the input file will be replaced by the output file New directories will be created as needed accord ing to the path specification If files from separate input directories have i
7. can be modified via the respective but ton see Properties of batch jobs All tasks are listed together with their properties and definitions including for example file names a task description current status and a comment 4 4 Adding files to a batch The following tasks can be performed in batch mode e Rectify and optionally crop image e Transform coordinate system e Convert and modify image e Delete or crop image area using polygon e Change image size e Apply color palette to image e Repair ESRI shape files Rectification of images optional cropping w Recttication af images optional crapping Converting image world transformation compression select t Erasing cropping images by polygons directori Resampling of images Applying color palette Repairing ESAI Shape files Files to be loaded do not have to be in the same directory To quickly add all files in a given direc tory use Add all To also recursively add files from all subdirectories select Search subdirec tories Inadvertently added files can be removed from the batch using Remove Pressing lt Back returns to Batch control dialog Pressing Next gt opens Output rules dialog 4 5 Output rules Use Browse to select the target directory Output files are named according to the fol lowing rules If the check box remains unchecked output files names are identical to input file names Placing a check mark in the check
8. data im age Use Add to add an image to the list of images to be loaded for the mosaic Different input di rectories are possible In case of differing color depths between the loaded images all loaded images will be converted to the greatest color depth found among them Creating Image Mosaic 2 4 Input data par titioning template Select between two methods for image partition Ing Method Mapsheet catalogue polygon file MapSheetlatalog shp Regular partitioning w 18902 110 h 16882 8999 Option Sheet line catalog 1 Polygons are read from a polygon file ESRI Shape ASCII or DXF and are used as tem plate for the shape of the image mosaic The extent of each individual polygon determines the extent of the corresponding image in the mosaic Irregular polygons are permitted fo oats Output mosaic Option Regular partitioning Set either the individual extent or the total number of im age tiles in a given direction The constant parameters w and represent the extent of the frame covering all input images Based on w and h the values for n and m are automati cally computed for given a and b and vice versa e If the number of tiles is more important than their respective size specify values for n and m i e the number of tiles in x direction and y direction respectively Values for parameters a and b will be automatically computed and show the size of each image tile in map
9. the brightest pixel color is set to transparent When saving a WGEO MAP file the transparancy color is stored in that file However this information is not available to other applications except WASY FEFLOW 24 User s Manual Invert image T Replaces each image color by its complement on a scale of O through 255 Grayscale image Ha Replaces each image color by a gray level while maintaining image brightness and color depth Reduce color depth Decreases number of col ors in the current image to 2 1 bit 16 4 bits or 256 8 bits colors Increase color depth Increases number of col ors in the current image to 16 4 bits 256 8 bits or 16 million 24 bits colors Reducing color depth with color table With image loaded Image menu Image size Use an existing color table to reduce the color depth Using the Optimized MedianCut option will typically result in the closest match of the origi nal colors Alternatively color values can be taken from the source image or from an exter nal color table optionally the external table can be extracted from an image When specify ing an external table Floyd Steinberg error diffu sion can be applied whereby adjacent pixels are included in the calculation of new color values Edit color palette Images with a color depth of eight bits 256 colors include a color palette that can be edited saved and used in other images as well mh Fr SSSR Sett
10. uni form coordinate system can easily become a very time consuming task WGEO 4 0 the WASY georeferencing software efficiently addresses this issue It is an easy to use yet highly efficient tool for working with spatial data The output of WGEO 4 0 can be used by diverse geographical information systems Combinations of modules can be licensed for single seat or network use The modular design of WGEO 4 0 together with the variable licens ing permit tailoring the software according to specific user needs WGEO 4 0 5 Y an gt ku Gies toe st a See Gs wh 6 User s Manual WGEO Basis Georeferencing amp geoimaging WGEO plus Advanced georeferencing amp geoimaging WGEO Professional Optimized module for the processing of large georeferencing projects Project Mode Topographical Maps Module for the georeferencing of large numbers of topographical maps Coordinate Transformation Interface Georeferencing of raster images simple geoimaging Georeferencing of vector maps Shape DXF Georeferencing by transparent image overlay on raster imaqes Resampling of images while maintaining georeference Creating of image and map sheet catalogs Image mosaics Shape controlled cutting Project controlled data management Image catalogs and shape themes as background information for transparent georeferencing Filter techniques to optimize contrasts Sem
11. units see Figure below e Ifthe tile size is of greater importance than tile number specify values for a and b i e the tile extent in map units in x direction and y direction respectively All tiles in the mosaic will have this size Values for n und m i e the number of tiles in each direction are auto matically obtained and displayed see Figure below Mosaic and frame match at the lower left corner The mosaic fully covers the frame on the right and at the top edge Creating Image Mosaic 3 4 Target Directory and prefis File prefix IMG Specify a target directory optionally by using the Browse button By convention the name of a given tile image is determined by the position of the tile within the WGEO 4 0 39 mosaic The name always starts with a file prefix followed by a position number see Figure be low Creating Image Mosaic 4 4 Result A log lists all operations performed Log contents can be copied pasted into other applications The wizard can be closed without interrupting the process A batch file will be created Once started the mosaic creation batch process can be monitored in terms of overall progress and current tile number If necessary the batch process can be aborted at any time During batch processing WGEO remains interac tive and ready for other tasks Note Creating an image mosaic can be computation ally intensive and thus time consuming 40
12. used for snapping Polygon selection View menu Polygon selection A polygon can be created to serve as image se lection for deleting copying and cropping The georeference is maintained in all cases Use the left mouse button to set the individual points forming the polygon The polygon is automatically closed once the start point is clicked again or after a double click on a point 32 User s Manual The polygon can then be edited in various ways Delete point While the polygon is incomplete has not been closed clicking on a point deletes all subsequent points and connecting lines To delete a point from a completed closed poly gon simply drag it outside the window Add point Placing the cursor above a connect ing line of the polygon will change its appear ance to a black square indicating that by a left mouse click a new point can be set there Move point Placing the cursor above a point of the polygon will change its appearance by add ing a cross indicating that the point can be dragged to a new location using the left mouse button Move polygon Placing the cursor inside the polygon will change its appearance to a cross indicating that the polygon be dragged to a new location using the left mouse button Save polygon Using Save selection Edit menu the rectangle can be saved for future use in ESRI Shape or Generate format Load polygon Saved polygon selections can be loaded using Load
13. used with a minimum resolution of 1024 x 768 pixels 2 2 Installation and licensing 2 2 1 Demo license Pressing the Demo button in the license infor mation dialog activates all plus functionality for testing with the included demo data set WGEO 4 0 9 WGEO 4 0 Demo mode makes the combined Base and Plus mode functionality except for Parcelling map and Topographical map mode available for testing using the included demo data All transformation methods georeferenc ing and image editing functions can be used with the demo data however single point trans formations require a valid license In demo mode user data can be used for geo referencing but cannot be saved 2 2 2 Single seat standard license This dialog is used to enter license keys that acti vate single seat licenses for WGEO Basis WGEO Plus or for coordinate transformation User and company names are entered in the Name and Organisation fields respectively Serial number and Product key are obtained together with the software Note that all view windows need to be closed before changing the license 10 User s Manual License Information Standard Network User License Status Please enter name and organization in the fields below Additionally enter serial number and product key as printed on the product cover Leaving the license fields blank or pressing the DEMO button turns on a DEMO mode in which you can load
14. 74491E4275988EAAE37E585 2 2 3 2 License server status The status dialog displays the current values for the internal parameters of a license server Any license server within the network can be moni tored The information displayed can be useful in solv ing license problems If the protocol option of the license server has been activated a status snapshot can be sent directly by e mail to WASY support License Information Standard Network User License Status Status of license server olymp Status of the NETLM license server on host 014 Version 3 7 0 03 15 0 Running in background YES Allow routed requests YES Searching for files NO Send messages to syslog YES Echo messages to stdout NO Suppress error messages NO Keycode calculation YES v E i gt 2 2 3 3 Active User Display Current license users This dialog lists all current users of all licenses managed by the license server In addition to user name the application its licensed version the host computer name display status and time of license server log in are shown WGEO 4 0 13 License Information Standard Network User License Status Active Users User Program Version Host Display Login vo feflow 5 064 freya kars feflow 5 061 pekar peter feflow 5 009 a pebet junk teflow 5 058 a peter Bert feflow 5 062 peber kars feflow 5 06 pekar ute age 400 l
15. WASY Software WGEO 4 0 Georeferencing Geoimaging amp Transformation User s Manual WASY Gesellschaft fur wasserwirtschaftliche Planung und Systemforschung mbH A Preface This manual gives you information to the use of the WASY Software WGEO 4 0 The structure of this manual reflects the modular structure of the software package Chapter 1 and 2 give an introduction and an overview to the modules Chapter 3 describes the geo referencing and geoimaging with the modi WGEO 4 0 Basis and WGEO 4 0 plus The description of the batch mode follows in chapter 4 Copyright Information contained in this document is subject to change without notice No part of this work may be reproduced or transmitted in any form or by any means electronic or mechanical without the express written permission of WASY GmbH Copyright 2005 WASY GmbH All rights reserved WASY and WGEO are registered trademarks of WASY GmbH ESRI and ArcView are registered trademarks of ESRI Inc The names of other companies and products herein are trademarks or registered trademarks of their respective trademark owners WASY Gesellschaft fur wasserwirtschaftliche Planung und Systemforschung mbH Waltersdorfer Stra e 105 D 12526 Berlin Telephone 49 0 30 67 99 98 0 Fax 49 0 30 67 99 98 99 E Mail mail wasy de Internet http www wasy de ii User s Manual Contents 1 M A EE AEN E EE 5 LE Georeferencing and spatial modification of p
16. ack ground map position The most recent link vec tor can be deleted using the backspace key To delete several links reference points use the georeferencing dialog this is possible at any time The georeferencing dialog also displays the work map image coordinates together with the associated background map world coordinates and the respective RMS a 7 k ers en tif Distance between respective reference points and RMS error norm indicate the quality of the match Red and green markers indicate actual and desired position respectively Match quality may be enhanced by modifying the existing link vectors by adding more link vectors the num ber of link vectors is not limited or by introduc ing link vector weighting factors WGEO 4 0 35 Perform a rough positioning of the work map on the background map using the Shift alle Rotate ra and Scale tools 36 User s Manual He 1 IRH i beget 7441006 deems I Pe Fha gama seeds ee age Set link vectors wi reference points for precise work map positioning Start georeferencing Note Automatically calculated work map reference points with world coordinate values obtained from current transformation and image coordinate values are displayed in blue color Georeferencing based on link vectors ignores these internal reference points Only if no link sectors have been set are the internal reference points used for referenc
17. ar grid so that any gross errors made in defining the reference points become apparent Export Preview Square root of the mean squared de viation between predefined and calcu lated points RMS Edit field for the image x coordinate Imagex value Edit field for the image y coordinate ImageY value Edit field for the world x coordinate RealX value Edit field for the world y coordinate RealY value WGEO 4 0 27 Edit field for the weight to be given to the currently selected reference point s during the transformation calculation Weight values do not have to be whole numbers A zero weight value results in the respective reference point being ignored during the trans formation use during testing to avoid the need to delete a given point Weight Referencing methods Registration No image con version is performed only the transformation is saved Use for scaling and shifting only Transformation x Axi B y Cxi D Standard rectification Affine transformation image can be scaled rotated and shifted A new image is computed Transformation x Axi Byi C y Dxi Eyi F 28 User s Manual Trapezoidal rectification Im age can be scaled rotated shifted and corrected for non parallel distortion A new image is computed Transformation x Axi Byi Cxi yi D y Exi Fyi Gxi yi H 3 1 7 Coordinate input by ref
18. arameters To preserve settings between WGEO sessions check the Use as standard settings box The color palettes of background maps can be ad justed in brightness contrast saturation and RGB values To only change a particular color of the palette double clicking it opens another dialog where the color can be edited 4 j Centers total extent of the work map within the displayed window extent of the background map t Shifts work map 34 User s Manual Zoom to active maps Edit map properties i Rotates work map a Scales work map increasing or deceras ing its dimensions i Sets link vectors from work to back ground map an Deletes all link vectors ah Ends overlay mode In Shift mode the following mouse functions are also available Shift Left mouse button LI WASY Geolmaging Overlay Scale Left mouse button Shift key icon pae mme eman e Ee Rotate Left mouse button Ctrl key PEI The shift rotate and scale functions maintain the x y image proportionality Link vectors can be used to also achieve an image distor tion While link vectors are being set the other functions become disabled and remain so until all link vectors are deleted Ideally at least four link vectors should be set near the border of the work map To set a link vector click on the desired work map position wee drag the mouse keeping the left button Ken e pressed and release it over the desired b
19. ate to display errors only activate to display warnings also e GeoTlIFF Extension Activate to write geoin formation directly into the TIFF file When de activated any geoinformation present in an image will be ignored by WGEO Applications that implement the GeoTIFF extension for ex Image rendering by tiling Tiles image into ample Arcinfo and ArcView do not require blocks of 2048 x 2048 pixels each as required additional files such as TFW files to obtain by certain graphics cards under Windows world cooordinate values for the image 16 User s Manual 95 98 that may otherwise fail to display very large images gt 64 MB uncompressed The option is activated automatically if an internal error code indicates failure of the standard display function to display the entire image Auto pan Pans view to the vicinity of the currently selected reference point once a first approximation of the world transforamtion is obtained Panning by middle mouse button Enables panning by middle mouse button when using a 3 button mouse Defaults to right mouse button for a 2 button mouse Options Force square pixels During the image georeferencing process an optimum pixel size is calculated usually with different X and Y values Square pixels are not generally suitable for georeferencing but may be required by other applications For example some image processing applications read only the X value and use it for Y as
20. automatically restored Number of threads Distribution between processors Registered components Displays tree dia gram of registered COM components sorted by category Using the gt X E toolbar new WGEO 4 0 17 components such as transformation methods can be registered components can be re moved from the registry and property pages of components and categories can be ac cessed 2 3 6 Registered file name extensions File menu Preferences File types 2 4 Button description 2 4 1 WGEO 4 0 Basis WGEO 4 0 can be associated with various file types Double clicking a file of an associated type will automatically launch WGEO 4 0 The previ ous association is saved and will be restored once the file type is no longer to be associated with WGEO 4 0 List of file types that can be associated with WGEO 4 0 and their name extensions Button Action 5 Create a new empty file either image or batch file Open existing file Open ESRI Geo objects requires ArcObjects mi Save active file Fa Cut Copy Paste 18 User s Manual Button wT be Action Undo last action single level Write new tasks to batch file Open Data inspector for quick display of attribute data WGEO 4 0 Help Measuring tool Rectangular selection Polygon selection Select all Delete selection see also Rectangular and Polygon selection Crop keep only selection see also Rectangular and Polygon
21. catalog and use its dBase as an image catalog WGEO 4 0 37 Create catalog 3 3 Result A log lists all operations performed Log contents can be copied pasted into other applications The wizard can be closed without interrupting the process Note When combining images the first color palette will be used for all subsequent images as well To avoid undesired results it is recommended to store all images with the same color palette us ing the find similar colors method before cata loging See Batch mode 3 2 4 Create image mosaic Extra menu Create image mosaic Requires WGEO 4 0 plus license To effectively use images such as topographical maps or aerial photographs with GIS or other visualization software it is often desirable to convert the georeferenced image to an image mosaic i e an image consisting of rectangular nonoverlapping tiles When working with rectangular image tiles only those tiles need to be loaded at any one time as are needed for the respective on screen view This reduces the need for memory swapping and can dramatically speed up the responsiveness of the software If the tiles are created so that no data image areas are excluded the resulting image tiles can 38 User s Manual be visualized in virtually any graphics software without further modification A wizard is provided to support the creation of image mosaics Creating Image Mosaic 1 4 Input
22. d or points can be activated for ob taining exact coordinate values Loading and Editing of Microsoft und Paint Shop Pro color palettes Interpretation of ASCll files value triples as point line or polygon geometry The set of points will be graphically displayed and can be used as reference map A COM interface is provided for integration of user specified data formats Additional functions also in batch mode Invert Changing color depth Rotation in 90 increments Changing compression and geo transformation format These functions all pre serve the georeferencing Data inspector for quick display of attribute data Format conversion of attribute data dBase ASCII WGEO 4 0 7 1 1 2 WGEO 4 0 plus In addition to all the functions of the Basis mode Plus mode provides further powerful functional ity for georeferencing and geoimaging e Georeferencing of vector data e Resampling Change image size e Color images can be transparently overlaid over georeferenced background maps to be georeferenced via link vectors The color pal ette of the background map can be dynami cally adjusted Overlay mode e Generating of image catalogs and of dBase tables containing names and extents of multi ple images e Generating of sheet line catalogs ESRI shape file containing the individual enclosures of multiple images The dBase file can be used as image catalog e Maps can be combined and or tiled ba
23. denti cal names their respective output files should not be written to the same target directory as this would result in the most recent output replacing previous output of the same name lt Back returns to the previous dialog Adding files to batch Pressing Next gt opens a new dialog depending on the task definition 4 6 Conversion settings Select the file format for the geographical trans formation and the compression type for the output TIFF image Please note that only the WGEO MAP format can store all types of pertinent image information such as transformations reference points trans parent color selection polygon etc Rotation 90 180 270 degrees or no rotation Color depth Reduce increase or keep Invert Replace each color by its complement Image format Output format TIFF JPEG BMP compression EN type as applicable Transformation World file for georeferencing MAP TFW JGW BPW TAB GeoTIFF lt Back returns to Output rules dialog Pressing Finish gt applies all settings to the batch file Batch control dialog 4 7 Georeference settings Georeferencing requires a world file containing the world transformation to be present in the input directory Please note that only the WGEO MAP format can store all types of pertinent im age information such as transformations refer ence points transparent color selection poly gon etc The transformation itself can be stored in ESRI
24. dules of the licensed application that are activated by this e Key code A checksum over all entered license parameters Any change to a parameter will also change the key code The following rules apply when entering the key code a Characters are not case sensitive b The letter O is interpreted as zero c All characters outside the ranges A Z a z and 0 9 are ignored Except for the Options parameter entered characters are generally case insensitive The options string is passed to the licensed applica tion WGEO treats this string also as case insensitive The 1 b WA E toolbar can be used to go to previous or to the next license to clear all fields for entering a new license to delete a li cense and to avoid misspellings to enter all parameters via Windows clipboard The last op tion is available if the license has been sent by e mail and is of the following format e ServerHostid lt License server host ID gt e ClientHostid lt Empty gt or lt Client host ID gt e Application lt Application name gt e Version lt Application version gt e Expiration Date lt Expiration date gt e Number of License lt Number of licenses pur chased gt e Options lt License options gt e Keycode lt 24 character key code gt For example ServerHostID 7270167e ClientHost ID Application WGEO Version 4 xx Expiration Date 25 oct 2003 Number of Licenses 2 Options 201 TEST Keycode 0
25. ee el One T 8 20 SSS eee SE ag sme wie um x i Tt tty j TF 3 ae T ar k N HEEE IHRE ee j F TEEEEETTITITITI 237 RGB 0 65 0 Colors can be selected directly in the palette or using the eyedropper tool in the image Double clicking a color in the palette opens a dialog for selecting a new color or entering new color val ues Palettes can be saved and thus made available for other images via the Image menu in Micro soft or PaintShopPro format Existing palettes in these formats can be immediately applied using one of the following color distribution options e Color index e Find similar colors e Dithering error diffusion Load color palette An existing Microsoft or Paint Shop Pro color palette can be applied to the current image Save color palette Saves current color palette in Microsoft or Paint Shop Pro format Enlarge image Doubles the DPI value of the image maintaining image aspect ratio This function can also be used in batch mode Shrink image Reduces the DPI value of the im age by one half maintaining image aspect ra tio This function can also be used in batch mode Image size Different methods are available to edit the size of the image including pixel num bers percentage of original size and physical print size e Size in pixels Specify new pixel numbers e Percentage of original size Specify percent age values to be applied to the o
26. erence map With image loaded Map menu Load reference map Makes pixel or vector maps GeoObjects or tabulated coordinate values available as refer ence maps for Georeferencing a work map First mark a reference point on the work map Next double click at the corresponding location in the already georeferenced reference map to set an associated reference point Reference point locations in either map can be modified at any time using the mouse coordinate values are updated automatically as needed Using the Snap function Map menu or m points or lines can be precisely selected Snapping is not available for raster images and ESRI GeoObjects Hint Multiple reference maps can be loaded for geo referencing a work map I Backeround1b tif Working Map i eles Sample shp Reference Map TA NEL el coordinate N transfer Image x 223 412 image coordinates mgt 415 39 world coordinates 3 1 8 Entering coordinate values by keyboard WGEO 4 0 29 I Backeround1b tif Working Map lE X transfer coordinate 2 ar 441 MT SH A TERSA ee See image coordinates world coordinates Reg alle 3 1 9 Deriving geometry With table loaded Window menu Geometry Geometry can be derived from tabulated values imported from ASCII or dBase file First define 30 User s Manual Referencing mahad BB gx Sa EH EHE the correct interpretation o
27. f the data columns as point line or polygon geometry The resulting geometry can be used as reference map for georeferencing Use Save as to export geometry data to an ASCII or dBase file EIER ga points txt 1 A Y 3460443 00 2040044 00 3460440 00 5636636 00 3460438 00 5838640 00 3460444 00 2046640 00 points txt 2 po lygo n geometry 3 1 10 Scanned images maps have edges or other undesired areas which have to remove after wards The resulting maps after the referencing process also have no exact rectangular form Cropping and deleting Rectangle selection ee View menu Rectangle selection aban points txt 2 point geometry line geometry use geometry as reference map Click and drag in the active window to open a rectangle Drag the rectangle handlers small black squares to modify size and shape of the rectangle Placing the cursor within the rectangle changes its appearence to an arrow cross indi cating pan mode where the rectangle can be panned using the mouse The rectangular selec tion can be deleted or copied or the image can be cropped keeping only the selected portion The georeference is maintained in all WGEO 4 0 31 cases Using Save selection Edit menu the rectangle can be saved for future use in ESRI Shape or Generate format Saved selections can be loaded using Load Selection f Cropping Lines and points of the selection can be
28. gon Based on a polygon ESRI shape ASCII or MAP file of the same title as the input file the image is cut or cropped Deleted areas can be optionally filled with a background color Change image size Different methods are available to change the image size including number of pixels percentage values and physi cal print size Size can also be changed via DPI and scale settings Apply color palette to image Existing color palettes in Microsoft or Paint Shop Pro format or the palette of a reference image can be ap plied to several images using one of several possible methods Repair ESRI Shape files Corrects minor errors in a shape file 4 2 Creating a batch file Either of the following two methods creates a batch file WGEO 4 0 41 Click New L in the File menu and select New batch file This will open the batch control dia log If the batch button S is active all tasks de fined via the Georeference and Transform dia logs are written to a batch file The buttons Start and Transform in these dialogs are relabeled to Batch Clicking the Batch button opens the batch control dialog The WGEO plus function Create image mosaic also employs the batch file mechanism To begin batch execution press the Start button in the batch control dialog 4 3 Managing a batch file Extensive repetitive tasks are best handled in batch mode Jobs can be defined and queued for execution at a suitable time Thi
29. i automatic georeferencing on the basis of map sheet catalogs For Germany there already exists a number of sophisticated high precision coordinate transformations WGEO provides a programming interface to integrate user defined or third party transformations and data formats 1 1 Georeferencing and spatial modification of pixel data 1 1 1 WGEO 4 0 Basis Georeferencing of image data Optionally georeferencing using affine or trapezoidal transformation conversion of pix els or Registration only creating of world fi les Assigning of world coordinates by keyboard import functions or georeferenced reference maps Spatially referenced deleting and cropping using rectangular or arbitrary polygon selec tions Combining of georeferenced images copy and paste File controlled spatially referenced deleting and cropping Batch mode Tasks can be defined queued and executed at a later time recursive loading is supported Transformation of attributes For shape files containing coordinates in the attribute tables the respective columns can be specified for coordinate transformation Data file transformation Coordinate value pairs in text or dBase files can be converted by the WGEO 4 0 transformation routines Single point transformation Individual points entered by hand can also be converted Snapping When using vector maps or coordi nate tables as reference maps snapping to lines an
30. ing resulting in a zero RMS error norm Pushing the Start Batch button in the Requires WGEO 4 0 plus license georeference dialog start the georeferencing process adds the task to the batch A catalog contains information of georeferenced images There are two types of catalog available 3 2 3 Generate image catalog e Image catalog Image extent coordinates are stored as a table in dBase file format Extra menu Generate image catalog m ImageCatalog dbf x AMIN YMIN AMAA YMA 3426656 64792 53001 79 59636 3432606 93925 5556 125 95003 2421166 15625 5959020 71745 3427154 22500 5561771 70404 3426 7 72 815968 wooo 4116235 3432 65 42545 2001090 22302 3421078 12283 2850267 18253 3427070 17977 2696210 17687 e Sheet line catalog Image extents are stored A wizard is provided to support the creation of as polygons in ESRI shape format The poly catalogs gona may OvetdD ame Create catalog 1 3 Input data Use Add to add an image to the list of images to be included in the catalog Different input directories are possible blattschnitt shp DEAR Create catalog 2 3 Output Select the catalog type and specify a target file optionally by using the Browse button The target directory will be automatically created if it Is new Please use different file names when simultane ously creating an image catalog and a sheet line catalog in the same target directory Alterna tively create a sheet line
31. ixel data cscscscsssseccesssrsoees 7 M E E 5 3 O A OAOA E ON N EA 7 Melena E ee 8 1 2 WOEO S0 Prois sional se ee ETERNA 8 1 3 Topographical Mar MOdE dace canekcateak atest cote caasechoadesnceshesneatenca dr niir dnai id ina 8 1 4 Pelee ec om Tan oma O sina E 8 2 Anm AVOUT sericea 9 rare ege e aa e al ER A N AA A 9 22 Incl 001g ana Ml 9 gt 10 BESSERE olen me aren en ere oe on nese VIER NEUE EINST ree 9 N N TEE EEE 9 22 Se RO Beer rer 10 tea PONO ICC INO cra RER EN SRORS RR UEERREORU REES ERS NERCREN ROSEN 10 2 3 Starting and customizing th progai ee 14 Pols A Ea T OO TO OOO OTTOON TOONA 14 2 3 2 Selecting th MOUE nee 13 Ee E ee ee 15 ZH mo Oe ee eier 16 De DE Eee 17 2 3 6 Registered file name extensions uusssnnsennnsennnnennnennnnnnnnnsnnnssnnnssnnnssnnnssnnnssnnnssnnnn 18 2 4 Biblure OE OMAN teers rt AAE er Meee he tect heen eee re teeter 18 2 4 1 WGEO 4 0 BE nee ee 18 ee EEG NENNEN INGENIEUR E E 21 WGEO 4 0 iii 3 1 UJ ze a N au sun 3 2 CHAF Fala 3 2 3 3 2 4 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 iv User s Manual Georeferencing and Geoimaging cccssccsscsssccssccsscssccsscesseessseesees 23 aT Oe ay eee eee NER ee ere Te 23 ANNIE I een ERINNERN 23 IE ee ee u re 23 POCA TURIN IN JRR EEE EEE LEE EEE TEA A 24 Wiggers gellate Wee N N EEE READER 26 Denne table COIUTIMS go sevee creme eairseoreme saeee nein acteeoreeesstohnro
32. necesbonerseies erenssouseoroeesseoenroeeercaets 26 E Re Mee Mee ee ee ent RAR erence eee 27 Coordinate input by reference Tee 28 Entering coordinate values by keybord ae 29 Ba COE EAN AE A A A E A 30 a igo he ye a N ee ee ee 31 le OL NN PNN acess ee ene eared N EEE eae rte ines were aoe ee ace EEIERERUNESERERE 33 Multiprocessor MOTE crror a cre ee rene ener an ere nen renee nner ee err 33 SCOrererencing Witt Dackground AS concretion erie arene arms 33 Generate image catalog an 37 S u IA I AET E I A ENR I I A N T 38 BLEI CS I ee ee 41 Bacmmode Tek GESUG NN REN NEUN UN ER ene ner ena 4 S io ec 6 cela lt Pe en een meen nen eee nce cer ne eee ene ee ener renee eran eee en 4 Managing a Datem een ea ee ee ee 42 Adding Ties 6 Da aei 43 BO E a gt A A E A E E A E A esse ee 43 RT OE A E E A E E E has 44 REO FET NSIC selling ecrini TEDE 45 Baten BMT NNR erien iner a EAEE E EE AEE AEs 45 Introduction Overview to the modules The growing number of tasks involving the re cording administration and analysis of digital geographical data is reflected in an increasing use of geographical information systems in the commercial and government domains Where digital geographic data are not yet available for a given area they are typically obtained by scan ning existing analog data Any such data possi bly from differing coordinate systems must be referenced to a world coordinate system Chang ing coordinates or transforming data into a
33. nto the WGEO win dow Files of the following formats can be opened e TIFF raster image tif tiff e JPEG raster image jpg jpeg e Windows Bitmap bmp e PC Paintbrush file pcx e Georeferenced pixel file map tfw jgw bpw tab e ESRI Shape shp e AutoCAD Exchange format dxf e dBase IV dbf e ASCII Text table txt dat e WGEO Batch wbp e WGEO Project wp1 Topo map mode WGEO Project wp2 WGEO Professional Some ESRI file formats require ArcObjects e PersonalSDE e ArcSDE e Coverages WGEO 4 0 23 Note Additional user specific file formats can be pro vided via COM interfaces 3 1 3 Additional functions Rotate image by 90 180 270 a AP Both raw and georeferenced images can be ro tated in 90 increments For example raw im ages can be rotated into the correct orientation for easier image registration afterwards When rotating a georeferenced image the rota tion information is stored in the world file To undo the rotation later simply georeference the image again using the world file Load image gt Open Georeferencing dialog gt Push Start Transparency color al A background color can be defined that becomes transparent when pasting map portions into another map This color can be set explicitly via the Select option or by clicking on a pixel after zooming in suffi ciently that has the desired color By default
34. ocal nico wegen 400 local par wgeo 4 00 local e User Name of the user running the licensed applications e Application Original name of the application renaming the application has no effect on this value e Version The version number of license dis played up to the third digit after the decimal point e Host Name of the remote host client run ning the application e Display Only relevant to X11 applications such as FEFLOW that may redirect their out put to a remote display For WGEO this value should always be local e Login Start time of license use Disconnecting a client from the license server Each current license client maintains an open TCP IP connection to the license server An end 14 User s Manual of file EOF received by the license server indi cates that the client has properly terminated the application The license manager then makes the respective license available for new client re quests In case of accidental disconnection for example due to a client system crash the license manager receives no information that the license is no longer used and the license must be released manually as follows e select the connection e push the Disconnect button e push the Refresh button to ensure that the license becomes again available 2 3 Starting and customizing the program 2 3 1 Starting WGEO WGEO is started via the WASY entry in the in the Programs folde
35. r of the Windows Start menue The program Window WASY Geoimaging is displayed on the screen In the File menue there are the common menue items New Open Exit and the last six used files Furthermore you find here the menue items Modus and Preferences which are described later in this chapter Via the menue Help you get Information to the software version and access the license dialog and the online help 2 3 2 Selecting the mode File menue Modus Click Modus in the File menu and select one of the provided modes Standard Professional or Topographic The selection is regulated by the installed license _ WASY Geolmaging Standard Professional Ctrl h HEE Topographic Open Geo Object Preferences 1 SampleMap 2 Overlay 3 SampleMap 4 Raster l 5 Projektdateil 6 C Program Files 1Wihaystr 7 CH Program Files dig Flur 6 Apertured Pad 9 C Program Filesi Wacao2002 10 Wihaystr transf Exit 2 3 3 Modifications View menue Toolbar Modify In the dialog box Customize you can make sev eral settings respectively commands toolbars menus styles and options For example you can select the display style of menus and toolbars according to personal pref erence from the following list of Microsoft Office versions e Office 97 e Office 2000 und e Office XP e Office 2003 e Windows XP The style selection has no effect on the function ality of WGEO Cu
36. riginal size e Physical print size Specify either of the re lated parameters print size resolution DPI or scale The respective other parameters are automatically updated These methods can also be used in batch mode Data inspector The data inspector provides a quick display 7 current attributes and their respective values Attributes for image data are per pixel RGB values those for vector data are per element The data inspector is a dockable window i e it can be docked at the desired window position WGEO 4 0 25 3 1 4 Importing ASCII text files e decimal separator symbol File menu Open File type txt or dat e data record separator symbol Given the following information ASCII files can column separator symbol see Figure De Sa Lea For easy reference the top portion of the file is e whether the first row contains column headers displayed at the bottom of the dialog Importing ASCII table Format e First row contains column names Decimal sign we Separators Record New Line Column White Spaces File contents column names record 332654 25 6684985 21 56 2 3alz2l4 25 b94215 21 32 9 298 54 25 656585 21 61 3 j column decimal sign 3 1 5 Define table columns For ASCII and dBase files coordinate columns and the implied geometry must be defined With table loaded Table menu Define col Interpret data records as umns 26 User s Manual Points
37. s can also help to optimize the load on the computer Each job includes a specific task and identifies source parameter target and geotransformation tfw tab map files If georeferencing parameters are not available in a file they can be included in the batch file us ing the WGEO Referencing tool Once created the batch file can be executed at any time For example the batch process can be started after work in the evening so that the processed maps are available the next morning 42 User s Manual II WASY Geolmaging Batch File2 H File Edit View Extra Window Help EFE eee Jobs 1 files selected File Properties Image C Program Files wWASY wWGED 4 0 samples Rast La Transformation AMS e Output C Program Files WASY WGEO 4 0 samples ready e World File ESRI World File tfw v Method Is tandard rectification v Snap to points of the reference map OK e Close Closes batch dialog after prompting for saving e New Adds files for new task to batch Opens Adding files to batch e Delete Removes file from batch e Reset Finished tasks done status can be reset to wait status e Start Begins batch execution Progress bars display overall and current task progress e Tasks This window lists all tasks together with source file status and comments e Properties When a task is selected all avail able information for that task are displayed and
38. sed on a used specified pattern Mosaic function e Multiprocessor mode permits fast execution of complex tasks on the respective hardware 1 2 WGEO 4 0 Professional This module is optimized for georeferencing of land register maps not described in this man ual 8 User s Manual 1 3 Topographical map mode This module is optimized for georeferencing large numbers of topographical maps It is only available as a network license not described in this manual 1 4 Coordinate Transformation Several sophisticated high precision coordinate transformation are already available not described in this manual Administration 2 1 System requirements WGEO is a 32 bit program and runs exclusively under 32 bit Windows versions Windows 98 Windows NT 4 0 Windows Me Windows 2000 Windows XP Note that as WGEO is based on Microsoft COM technology its usefulness under Windows 95 will be limited and WASY does not support WGEO for Windows 95 There are no specific hardware requirements Of course im age size uncompressed see WGEO status bar at window bottom processing time and avail able hardware are related To effectively work with WGEO a Pentium Ill processor or better is recommended together with at least 256 MB RAM Physical and virtual memory combined should be at least three times the size of the largest uncompressed image to be processed To display the digital maps true color mode should be
39. selection Snap reference points to line Snap reference points to point Clone active window Fit entire map to window WGEO 4 0 19 Button a 20 User s Manual Action Magnify current view extent Shrink current view extent Pan view extent Restore previous view extent up to 10 levels Select transparent color in image Replace image colors by their respective complements Convert image to gray levels Rotate image by 180 degrees Rotate image by 90 degrees clockwise Rotate image by 90 degrees counter clockwise Open Edit color palette Open Georeferencing dialog Open Transformation 2 4 2 WGEO plus Button Action Overlay mode Georeferencing using background maps de Multiprocessor mode aie Center extent of working map within selected area of background map Move working map ae Rotate map Zu Scale working map enlarge or shrink a Set link vectors from working map to background map se Delete all link vectors ab End overlay mode WGEO 4 0 21 Georeferencing and Geoimaging 3 1 WGEO 4 0 Basis 3 1 1 Scanning maps Extra menu Scan image i Scan an image via TWAIN The scanned images are loaded automatically into WGEO 3 1 2 Open file WGEO 4 0 can open various registered file types by several methods e Via File menu Open e Double clicking in Widows Explorer on a file of registered type e Dragging a file of registered type by mouse from Windows Explorer i
40. selection Edit menu Exter nal files Shape ASCII can also be loaded How ever only the first of possibly several polygons will be loaded from a Shape or ASCII file To apply multiple selections to an image WGEO Plus batch mode is required 3 2 WGEO 4 0 plus 3 2 1 Multiprocessor mode Standard toolbar E WGEO 4 0 plus makes full use of multiple proc essors when available This can dramatically boost performance for example time needed for im age rectification drops by more than 50 when Cropping using a two instead of a single processor ma chine Lines and points of the selection can be used for 3 2 2 Georeferencing with background snapping maps With image loaded Map menu Background maps El Images work maps with scan coordinates can be shifted rotated scaled and georeferenced using a georeferenced background image The work map is displayed partially transparent in overlay mode over the background map Color depth of either map can be up to 24 bits Open the Background maps dialog il at any time to add or remove maps to change their sequence to set a zoom extent or to edit image properties see Figure WGEO 4 0 33 Move down Remove background map Background Map Add background map E Raster2 tif E Background2 tif ie Background tif The image properties dialog contains a selection of different graphics display options OpenGL DirectX und Direct3D and overlay p
41. stomize fa Open i Close Al Save nave Ag Geo Object Clase WGEO 4 0 15 2 3 4 Basic settings e File access Activate to map image file to memory so that relatively fast memory File menue Preferences access instead of relatively slow file access Click Preferences in the File menue to access routines can be used to read from and write to the dialog box WGEO Settings the image For some NOVELL Netware servers it may be necessary to switch this option off as WEED Settings SS saved files may only become visible after a re Settings Enhanced File Types start of the computer In contrast no prob ee lems should arise when using this option for 7 Shaw warnings local files under Windows NT 9x and for re Use Geol IFF extensions mote files on Windows NT and UNIX Samba Fast file 10 servers Visualization Show Hak and Bie images in Gray scale Display Automatic extent selection Blockwise rendering of images e Black white images as grayscale images Fae a a Uses an anti aliasing technique to obtain a Options visual image quality much higher than would Force quadratic pixels while rectification be possible by displaying a 1 bit image di A nn rectly Thin lines remain visible even for ex treme zoom levels However the CPU load of computing gray level values for all pixels may make this option impractical on older hard ware TIFF Interpreter Raster 7 tif e Show Warnings Deactiv
42. well thus distorting images with non square pixels To force square pixels activate this option start the georeferecing with the existing world file and save the re sult Force WGEO MAP file Saves a WGEO MAP file with any image The map file stores all relevant information such as image extent and transparancy reference points selection poly gon rms error norm etc in ASCII format 2 3 5 Advanced settings File menu Preferences Enhanced Enable background processing CPU intensive operations will performed in a sepa rate background thread keeping WGEO fully interactive and ready for additional tasks in other documents For example the next im age can be set up for processing while another one is already being processed Four priority levels are available Normal Low Minimal and Idle Usually the best results are obtained by set ting the priority level to Idle where back ground execution is restricted to periods without interactive requests mouse move ments key strokes etc resulting in virtually no impediments for the user However in a multi user environment such as Windows Terminal Server the idle state may rarely oc cur and a higher priority will then be re quired Minimize while processing If checked all windows of a document are minimized during a time consuming operation to make the desktop available for other tasks Upon com pletion of the respective operation all win dows are
43. wildcard character for any numeral Note that network licenses are downward compatible so that for example a WGEO 4 0x license can also be used for WGEO 2 1 e Select one of the available licenses The OK button becomes enabled if the selected license matches the current application in this case WGEO Version 4 0 e Number Number of simultaneously usable licenses e Options A string indicating appliaction instal lation level e g licensed modules in WGEO Licensing of different applications e Free Number of currently available licenses An invalid license is indicated by a minus sym bol in this column typical causes are license expiration or a change in dongle ID see also License information The license administration tool can manage the licenses for all WASY products By default only information pertinent to the current appliaction is displayed Check Show all to see all available licenses at the license server for all WASY applica tions Note that licenses also can be installed for applications other than the current one 2 2 3 1 License Parameters List of available licenses License information SER en This dialog displays current license parameters It Tr E EOR E EEE also serves to enter new or changed license in arcsiwa 1 88 1 1 davis 1 8 1 1 formation feflow 50 FMH3 16 10 Wwiged 4 Oy 31462 20 16 WGEO 4 0 11 License Information Standard Network User License
44. world or Maplnfo TAB files as well When using a WGEO MAP file the rectangle or polygon selection of the file can be used for cropping Transformation World file for georeferencing MAP TFW JGW BPW TAB GeoTIFF Method Registration Standard rectification Trapezoidal rectification Crop Only applicable with WGEO MAP file map lt Back returns to Output rules dialog Pressing Finish gt applies all settings to the batch file Batch control dialog 4 8 Batch Transformation In addition to general coordinate transformation components such as the shifting transformation a number of externally supplied transformation components e g by government agencies are available Please keep in mind that the latter are typically designed for a specific geographical region of limited extent and thus are subject to lower accuracy when applied elsewhere Transformation method Shifting or other method selection Registration of other methods Source coordinate system Set of applicable source coordinate systems de pends on the transformation method selected Target coordinate system Set of applicable target coordinate systems de pends on the transformation method selected WGEO 4 0 45 Note Automatic strip selection is not compatible with raster or vector maps in case of overlaps Image georeferencing method For an image an additional method can be specified Registration Standard rectification
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