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Merge pull request #954 from gioman/grassnvizcolor

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[processing] add COLOR parameter to nviz to allow draping rasters over the digital elevation model
This commit is contained in:
volaya 2013-10-20 09:39:19 -07:00
commit f0c9efbf01
1 changed files with 13 additions and 2 deletions
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15
python/plugins/processing/grass/nviz.py
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@ -43,6 +43,7 @@ class nviz(GeoAlgorithm):
ELEVATION = 'ELEVATION'
VECTOR = 'VECTOR'
COLOR = 'COLOR'
GRASS_REGION_EXTENT_PARAMETER = 'GRASS_REGION_PARAMETER'
GRASS_REGION_CELLSIZE_PARAMETER = 'GRASS_REGION_CELLSIZE_PARAMETER'
@ -53,10 +54,12 @@ class nviz(GeoAlgorithm):
self.name = 'nviz'
self.group = 'Visualization(NVIZ)'
self.addParameter(ParameterMultipleInput(nviz.ELEVATION,
'Elevation layers',
'Raster file(s) for elevation',
ParameterMultipleInput.TYPE_RASTER, True))
self.addParameter(ParameterMultipleInput(nviz.VECTOR, 'Vector layers',
self.addParameter(ParameterMultipleInput(nviz.VECTOR, 'Vector lines/areas overlay file(s)',
ParameterMultipleInput.TYPE_VECTOR_ANY, True))
self.addParameter(ParameterMultipleInput(nviz.COLOR, 'Raster file(s) for color',
ParameterMultipleInput.TYPE_RASTER, True)
self.addParameter(ParameterExtent(nviz.GRASS_REGION_EXTENT_PARAMETER,
'GRASS region extent'))
self.addParameter(ParameterNumber(self.GRASS_REGION_CELLSIZE_PARAMETER,
@ -67,6 +70,7 @@ class nviz(GeoAlgorithm):
commands = []
vector = self.getParameterValue(self.VECTOR)
elevation = self.getParameterValue(self.ELEVATION)
color = self.getParameterValue(self.COLOR)
region = \
str(self.getParameterValue(self.GRASS_REGION_EXTENT_PARAMETER))
@ -91,6 +95,13 @@ class nviz(GeoAlgorithm):
commands.append(cmd)
vector = vector.replace(layer, newfilename)
command += ' vector=' + vector.replace(';', ',')
if color:
layers = color.split(';')
for layer in layers:
(cmd, newfilename) = self.exportRasterLayer(layer)
commands.append(cmd)
color = color.replace(layer, newfilename)
command += ' color=' + color.replace(';', ',')
if elevation:
layers = elevation.split(';')
for layer in layers: