The display of tiled background maps is directed by the iMOD coordinate CRD-file. The CRD-file is defined with the keyword TOP25 in the iMOD preference file, see section 9.1. The CRD-file links BMP-files as background maps by specifying the scale (at unit 1000) at which the BMP-files will be displayed and the name of the TXT-files in which the BMP-files are defined.
|
Variable |
Description |
|
MIN_D |
Specify the minimal distance. |
|
MAX_D |
Specify the maximal distance. |
|
BMP_TXT |
Specify the file name with references to bitmaps whenever the zoom interval is within MIN_D and MAX_D. |
Example of a CRD-file
0,12.5,BMPCRD02.TXT
12.5,25,BMPCRD05.TXT
25,50,BMPCRD10.TXT
50,75,BMPCRD25.TXT
75,1000,BMPCRD50.TXT
The TXT-files referred to in the CRD-file define the BMP-files used as background maps. For each BMP-file is specified: coordinates LL-corner, coordinates UR-corner, number of pixels in X-direction, number of pixels in Y-direction, cell size (m), name of the BMP-file.
|
Variable |
Description |
|
XMIN |
Specify the X coordinate of the lower-left corner of each individual tile. |
|
YMIN |
Specify the Y coordinate of the lower-left corner of each individual tile. |
|
XMAX |
Specify the X coordinate of the upper-right corner of each individual tile. |
|
YMAX |
Specify the Y coordinate of the upper-right corner of each individual tile. |
|
PXL_X |
Specify the number of pixels along the X-direction. |
|
PXL_Y |
Specify the number of pixels along the Y-direction. |
|
CELLSIZE |
Specify the actual cell size of each pixel in meters. |
|
FNAME |
Specify the bitmap for this tile. |
Example of a TXT-file
140000.00 615000.00 150000.00 625000.00 1000 1000 10.00 KB01_S0201.BMP
150000.00 615000.00 160000.00 625000.00 1000 1000 10.00 KB01_S0202.BMP
160000.00 615000.00 170000.00 625000.00 1000 1000 10.00 KB01_S0203.BMP
170000.00 615000.00 180000.00 625000.00 1000 1000 10.00 KB01_S0204.BMP
140000.00 605000.00 150000.00 615000.00 1000 1000 10.00 KB01_S0205.BMP
150000.00 605000.00 160000.00 615000.00 1000 1000 10.00 KB01_S0206.BMP
160000.00 605000.00 170000.00 615000.00 1000 1000 10.00 KB01_S0207.BMP
170000.00 605000.00 180000.00 615000.00 1000 1000 10.00 KB01_S0208.BMP
140000.00 600000.00 150000.00 605000.00 1000 500 10.00 KB01_S0209.BMP
150000.00 600000.00 160000.00 605000.00 1000 500 10.00 KB01_S0210.BMP
160000.00 600000.00 170000.00 605000.00 1000 500 10.00 KB01_S0211.BMP
170000.00 600000.00 180000.00 605000.00 1000 500 10.00 KB01_S0212.BMP
180000.00 615000.00 190000.00 625000.00 1000 1000 10.00 KB02_S0201.BMP
190000.00 615000.00 200000.00 625000.00 1000 1000 10.00 KB02_S0202.BMP