SetMapLegend

Question

Hi
I am trying to use the setMapLegend method in MapViewer to create a map legend. But there is only headlines for each symbol not the symbol itself that is written. I post the code below. What could be wrong so the symbols are not written?
String imageMapUrl = "";
MapViewer mv = new MapViewer("mymapurl");
mv.setImageFormat(MapViewer.FORMAT_GIF_URL);
mv.setDataSourceName("mydatasource");
String [][][]legenddata = new String[1][][]; // legend with one column
legenddata[0] = new String[8][]; // column with 8 items
for(int i=0;i<8;i++)
legenddata[0] = new String[5]; // description of each item
legenddata[0][i][0] = null; // text
legenddata[0][i][1] = null; // style
legenddata[0][i][2] = "false"; // is title
legenddata[0][i][3] = null; // tab
legenddata[0][i][4] = "false"; // is separator
// <entry text="Map Legend" is_title="true" />
legenddata[0][0][0] = "Map Legend"; // text
legenddata[0][0][2] = "true"; // is title
// <entry style="M.STAR" text="center point" />
legenddata[0][1][0] = "center point"; // text
legenddata[0][1][1] = "M.STAR"; // style
// <entry style="M.CITY HALL 3" text="cities" />
legenddata[0][2][0] = "cities"; // text
legenddata[0][2][1] = "M.CITY HALL"; // style
// <entry is_separator="true" />
legenddata[0][3][4] = "true"; // is separator
// <entry style="C.ROSY BROWN STROKE" text="state boundary" />
legenddata[0][4][0] = "state boundary"; // text
legenddata[0][4][1] = "C.ROSY BROWN STROKE"; // style
// <entry style="L.PH" text="interstate highway" />
legenddata[0][5][0] = "interstate highway"; // text
legenddata[0][5][1] = "L.PH"; // style
// <entry text="County population:" />
legenddata[0][6][0] = "County population:"; // text
// <entry style="V.COUNTY_POP_DENSITY" tab="1" />
legenddata[0][7][1] = "V.COUNTY_POP_DENSITY"; // style
legenddata[0][7][3] = "1"; // tab
mv.setMapLegend("#ffffff","255","#ff0000","MEDIUM",
"NORTH_EAST",legenddata);
try{
boolean res = mv.run();
if(res)
imageMapUrl = mv.getGeneratedMapImageURL();
}catch(Exception ex){}

Answer 1

Hi,
some items based on your code that you should check:
1) Assuming MapViewer url is defined on a String variable 'mymapurl' you should use: MapViewer mv = new MapViewer(mymapurl);
2) It seems that the legend initialization code ('for') does not compile. It should be:
    for(int i=0;i<8;i++)
      legenddata[0] = new String[5]; // description of each item
legenddata[0][i][0] = null; // text
legenddata[0][i][1] = null; // style
legenddata[0][i][2] = "false"; // is title
legenddata[0][i][3] = null; // tab
legenddata[0][i][4] = "false"; // is separator
3) After compiling this code, and having it pointing to the demo dataset that comes with MapViewer, the legend is rendered with success. So verify if your datasource has the styles defined.
Joao