Why does the Color Ramp "No Color" option create grey polygons? I have tried a few different ways to create a ramp that goes from a dark color through its lighter hues and then to nothing (not white). For some reason, even an algorithm or preset color ramp with all colors set to "No Color" shows up grey which means you cannot add that to a multi-part ramp to cheat the effect in either. This is important when you cannot use transparencies or graphic buffers because it is going to be used in a web-based map service. Does anyone have a solution for this?
Mapping Center Answer:
This is pretty much the same quesditon we recieved JUST the other day! Weird! Take a look at the answer to this question: http://mappingcenter.esri.com/index.cfm?fa=ask.answers&q=1005. You will see that it is not possible for a color ramp to range from a selected color to No Color.
Have you checked out the Transparency option that is descibed in the "Fade to White" effect? We wrote it up in a Mapping Center blog a while ago: http://blogs.esri.com/Support/blogs/mappingcenter/archive/2008/10/14/fade-to-white-background-effect.aspx.
If you would like to post a comment, please login.