SLD XML colormap entries parse quantity attr as int.

[kruland@…]

Pixel values can be real values.  In order to specify a ColorMap in SLD xml the
quantity attribute needs to support floating point numbers.  In mapogcsld.c at
line 2381 they are parsed as integers.  Also, a potential memory corruption
problem can occurr by using sprintf instead of snprintf.

[tomkralidis]

True. From ​http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd

 <xsd:element name="ColorMapEntry">
  <xsd:complexType>
   <xsd:attribute name="color" type="xsd:string" use="required"/>
   <xsd:attribute name="opacity" type="xsd:double"/>
   <xsd:attribute name="quantity" type="xsd:double"/>
   <xsd:attribute name="label" type="xsd:string"/>
  </xsd:complexType>
 </xsd:element>

Assefa: looking at mapogcsld.c, it looks like @quantity is already tested for a float or int?

[tomkralidis]

Assefa: can you confirm that we are indeed supporting floats in mapogcsld.c? Around line 2364 it appears to support both. We can close if this is the case.

[sdlime]

Any more on this? I'm trying to clean house...

Steve

[assefa]

support was added some time ago to read float or integer values.