/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/baserenderer.py
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revision 2551 by jonathan, Thu Jan 27 14:19:41 2005 UTC revision 2562 by jonathan, Wed Feb 16 21:14:47 2005 UTC
# Line 484  class BaseRenderer: Line 484  class BaseRenderer:
484          height = int(min(height, round(fmax[1] - fmin[1] + 1)))          height = int(min(height, round(fmax[1] - fmin[1] + 1)))
485    
486          try:          try:
487                options = 0
488                options = options | layer.MaskType()
489    
490              project_params = (layer.GetImageFilename(), in_proj, out_proj,              project_params = (layer.GetImageFilename(), in_proj, out_proj,
491                                (xmin, ymin, xmax, ymax), "", (width, height),                                (xmin, ymin, xmax, ymax), "", (width, height),
492                                layer.UseMask())                                options)
493    
494              data = (width, height, apply(ProjectRasterFile, project_params))              data = (width, height, apply(ProjectRasterFile, project_params))
495    
496          except (IOError, AttributeError, ValueError):          except (MemoryError, IOError, AttributeError, ValueError):
497              # Why does this catch AttributeError and ValueError?              # Why does this catch AttributeError and ValueError?
498              # FIXME: The exception should be communicated to the user              # FIXME: The exception should be communicated to the user
499              # better.              # better.
# Line 504  class BaseRenderer: Line 507  class BaseRenderer:
507          left corner at (x,y)          left corner at (x,y)
508    
509          The raster image data is a tuple of the form          The raster image data is a tuple of the form
510              (width, height, (image_data, mask_data))              (width, height, (image_data, mask_data, alpha_data))
511                    
512          holding the image width, height, image data, and mask data.          holding the image width, height, image data, mask data, and alpha data.
513          mask_data may be None if a mask should not be used. Both kinds          mask_data may be None if a mask should not be used. alpha_data may
514            also be None. If both are not None mask overrides alpha. If
515            format is 'RAW' the data will be RGB values and the mask
516            will be in XMB format. Otherwise, both kinds
517          of data are assumed to be in the format specified in format.          of data are assumed to be in the format specified in format.
518    
519          The format parameter is a string with the name of the format.          The format parameter is a string with the name of the format.
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