Changes between Version 16 and Version 17 of MapGuideRfc108


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Timestamp:
08/17/10 02:48:45 (14 years ago)
Author:
sparkliu
Comment:

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  • MapGuideRfc108

    v16 v17  
    4747
    48486. About the position of watermark: there are two types of position in watermark: XY position and tile position. Tile position means the watermark will repeat itself in the map image (it has nothing to do with tile service).
    49                 I)  The offset for tile position is the offset of watermark within tile (repeat unit), not map image.
    50                 II) The alignment base of offset is different depending on the alignment way. For horizontal alignment:
    51                         i) If the alignment is left, then the offset means the distance between left edge of watermark and that of map image / tile.
    52                         ii) If the alignment is center, then the offset means the distance between center of X-axis of watermark and that of map image / tile.
    53                         iii) If the alignment is right, then the offset means the distance between right edge of watermark and that of map image / tile.
    54                       For vertical alignment:
    55                         i) If the alignment is top, then the offset means the distance between top edge of watermark and that of map image / tile.
    56                         ii) If the alignment is center, then the offset means the distance between center of Y-axis of watermark and that of map image / tile.
    57                         iii) If the alignment is bottom, then the offset means the distance between bottom edge of watermark and that of map image / tile.
     49                I)  The offset for tile position is the offset of watermark within tile (repeat unit), not map image.[[BR]]
     50                II) The alignment base of offset is different depending on the alignment way. For horizontal alignment: [[BR]]
     51                        i) If the alignment is left, then the offset means the distance between left edge of watermark and that of map image / tile. [[BR]]
     52                        ii) If the alignment is center, then the offset means the distance between center of X-axis of watermark and that of map image / tile. [[BR]]
     53                        iii) If the alignment is right, then the offset means the distance between right edge of watermark and that of map image / tile.[[BR]]
     54                      For vertical alignment: [[BR]]
     55                        i) If the alignment is top, then the offset means the distance between top edge of watermark and that of map image / tile. [[BR]]
     56                        ii) If the alignment is center, then the offset means the distance between center of Y-axis of watermark and that of map image / tile. [[BR]]
     57                        iii) If the alignment is bottom, then the offset means the distance between bottom edge of watermark and that of map image / tile.[[BR]]
    5858
    5959            Here are several examples:
    60                 a)  XY position: X-Offset: 10 pixels from right, Y-Offset: 20 pixels from bottom. Watermark is a 40 * 30 pixel image. Map image size 400*300 pixels. Then the position of watermark is:
    61                         The left edge of watermark is 400 - 10 - 40 = 350 pixels (ImageWidth - XOffset - WatermarkWidth) from left edge of map image.
    62                         The top edge of watermark is 300 - 20 - 30 = 250 pixels (ImageHeight - YOffset - WatermarkHeight) from top edge of map image.
    63                 b) Tile position: X-Offset: 10 pixels from right, Y-Offset: 20 pixels from bottom. Tile width: 210 pixels, tile height: 170px. Watermark is a 40 * 30 pixel image. Map image size 400*300 pixels. There will be four watermarks in map:
    64                         i) Left: 210 - 10 - 40 = 160, Top: 170 - 20 - 30 = 120
    65                         ii) Left: 2*210 - 10 - 40 = 370, Top: 170 - 20 - 30 = 120 (part of watermark is not visible for out of map image bound).
    66                         iii) Left: 2*210 - 10 - 40 = 370, Top: 170*2 - 20 - 30 = 290 (part of watermark is visible for out of map image bound).
    67                         iv) Left: 210 - 10 - 40 = 160, Top: 170*2 - 20 - 30 = 290 (part of watermark is visible for out of map image bound).
     60                a)  XY position: X-Offset: 10 pixels from right, Y-Offset: 20 pixels from bottom. Watermark is a 40 * 30 pixel image. Map image size 400*300 pixels. Then the position of watermark is:[[BR]]
     61                        The left edge of watermark is 400 - 10 - 40 = 350 pixels (!ImageWidth - XOffset - !WatermarkWidth) from left edge of map image.[[BR]]
     62                        The top edge of watermark is 300 - 20 - 30 = 250 pixels (!ImageHeight - YOffset - !WatermarkHeight) from top edge of map image.[[BR]]
     63                b) Tile position: X-Offset: 10 pixels from right, Y-Offset: 20 pixels from bottom. Tile width: 210 pixels, tile height: 170px. Watermark is a 40 * 30 pixel image. Map image size 400*300 pixels. There will be four watermarks in map:[[BR]]
     64                        i) Left: 210 - 10 - 40 = 160, Top: 170 - 20 - 30 = 120[[BR]]
     65                        ii) Left: 2*210 - 10 - 40 = 370, Top: 170 - 20 - 30 = 120 (part of watermark is not visible for out of map image bound). [[BR]]
     66                        iii) Left: 2*210 - 10 - 40 = 370, Top: 170*2 - 20 - 30 = 290 (part of watermark is visible for out of map image bound). [[BR]]
     67                        iv) Left: 210 - 10 - 40 = 160, Top: 170*2 - 20 - 30 = 290 (part of watermark is visible for out of map image bound).[[BR]]
    6868        The unit of watermark position is the unit of "paper length", not the "actual length in map". So it will not align with the existing unit list in layer definition.
    6969== Implications ==