Display a raster on a map and apply different rendering rules to that raster.
Raster images whose individual pixels represent elevation values can be rendered in a number of different ways, including representation of slope, aspect, hillshade, and shaded relief. Applying these different rendering rules to the same raster allows for a powerful visual analysis of the data. For example, a geologist could interrogate the raster image to map subtle geological features on a landscape, which may become apparent only through comparing the raster when rendered using several different rules.
Run the sample and use the drop-down menu at the top to select a rendering rule.
- Create an
ImageServiceRasterusing a URL to an online image service. - After loading the raster, use
imageServiceRaster.ServiceInfo.RenderingRuleInfosto get a list ofRenderingRuleInfosupported by the service. - Choose a rendering rule info to apply and use it to create a
RenderingRule. - Create a new
ImageServiceRasterusing the same URL. - Apply the rendering rule to the new raster.
- Create a
RasterLayerfrom the raster for display.
- ImageServiceRaster
- RasterLayer
- RenderingRule
This raster image service contains 9 LAS files covering Charlotte, North Carolina's downtown area. The lidar data was collected in 2007. Four Raster Rules are available for selection: None, RFTAspectColor, RFTHillshade, and RFTShadedReliefElevationColorRamp.
Image service rasters of any type can have rendering rules applied to them; they need not necessarily be elevation rasters. See the list of raster function objects and syntax for rendering rules in the ArcGIS REST API documentation.
raster, rendering rules, visualization