On 21.09.2020 17:19, Giuseppe Aruta wrote: > Hi Ede, > it works fine. I was able to cut a selected part of the image. And also I > tested on some simple tools form Sextante that generate raster (Rasterize a > vector layer, change no data value..). > Let us wait for Roberto's test. I think that it is fixed. Also it is nice to > reduce time raster display reusing a renderedOp cache mapping.
yeah let's wait. anyway please advice him to use "-v trace" for delivering log messages. note that it is not debug but trace which is the most talkative setting. > The "colors" look different because a dem raster, with only one band, is > painted using a set of grey values between black and white for each cell > value. Those values are defined by the range of the cell values. The partial > raster generated by the extracting tool has, of coarse, a different range of > values compared to the original dem. That's why the different greys. > It is a way to graphically represent a group of datas (generally elevation > but also slope values, quantity of rain, insolation, etc) distributed (or > better reconstructed) as a grid on a surface. > Of course we can change the color schema (via Layer tree, Raster Style) and > we can omologate two rasters, with different ranges of values to the same > color schema (saving a color schema of one and importing it into the second, > always using via Layer tree, Raster Style). make total sense when explained like that :) > ..... > Very good job, Ede! I think, if no other problem came from Sextante tools > (and Roberto agree), this version will be used in the course. let's wait and see. homework for you is porting needed functionality from TiffUtils to TiffUtilsV2, so that in the end TiffUtils can be removed and only TiffUtilsV2 remains essentially wrapping GeoReferencedraster functionality. ..ede _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
