Drawing a continuous raster dataset
The Stretched renderer displays continuous raster cell values across a gradual ramp of colors. This renderer is good for displaying an orthophoto or satellite image.
Tip:
Having current statistics improves the renderer's ability to display the raster accurately.
Steps:
- In the table of contents, right-click the raster layer that you want to display across a color ramp and click Properties.
- Click the Symbology tab.
- Click Stretched.
- Optionally, if your raster dataset has multiple bands, choose the band you want to stretch.
- Optionally, click the Label text boxes and type labels for the table of contents.
- Click the Color Ramp drop-down arrow and click a color ramp.
- Optionally, choose a color or No Color to display any NoData values.
- Optionally, click the Stretch drop-down arrow and click the type of Stretch, if any, you want to perform.
- Optionally, check Apply Gamma Stretch and type gamma values in each text box for the red, green, and blue values.
-
Optionally, scroll down and click Statistics to change the statistics.
You can use the Statistics portion of the Symbology tab to examine and modify how your data is displayed.
- Click OK.
Tip:
You can quickly change the colors applied to a raster by clicking the color in the table of contents.
Tip:
Use the Image Analysis window or Effects toolbar to interactively adjust a raster layer's transparency over other layers on your map.
8/21/2013