Changes between Version 19 and Version 20 of MapGuideRfc51
- Timestamp:
- Aug 19, 2008, 8:03:41 AM (16 years ago)
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MapGuideRfc51
v19 v20 37 37 38 38 ||[[Image(raster_reprojection_viewport3_1.PNG)]]|| 39 ||Figure 1. The left side shows the raster image ( red X) in it's own CS. The right side shows the blue mesh of uniform triangles created in device space in the viewport CS.||39 ||Figure 1. The left side shows the raster image (green rectangle) in it's own CS. The right side shows the blue mesh of uniform triangles created in device space in the viewport CS.|| 40 40 41 We must first determine how much of the original image is required by projecting the extents of the viewport (or map) into the image's CS. This yields our desired clipped image . Then we project the extents of the clipped image into the viewport's CS, and subsequently into device space. A mesh of uniform triangles is created in device space (Figure 1).41 We must first determine how much of the original image is required by projecting the extents of the viewport (or map) into the image's CS. This yields our desired clipped image (red outline). Then we project the extents of the clipped image into the viewport's CS, and subsequently into device space. A mesh of uniform triangles is created in device space (Figure 1). 42 42 43 43 ||[[Image(raster_reprojection_viewport3_2.PNG)]]||
