MapViewer Legend

Question

Hallo,
I am dealing with mapviewer and the legend.
1: I can create a legend by defining each theme and the symbol I use for this. But is there a way that the legend is defined "automaticlly" so that I do not have to define each theme but mapviewer knows which themes are in this map and generates?
2: I can position the legend with position="NORTH_WEST". Are there other way to position it? By using numbers?
3: Are there code samples and where I could use?
4: I can not change the font of the text in the legend?
Thanks in advance Tig

Answer 1

Hi Tig,
Currently you can't generate the automatic legend based on the themes, and also you can't define a location (X,Y) to put the legend. We'll add these items on the enhancement list.
For item 4, MapViewer parses the legend font, however the API method setMapLegend does not have this parameter. We'll also add this enhancement. If you issue a XML request directly, you can define the font as:
<legend bgstyle="fill:#ffffff;fill-opacity:128;stroke:#ff0000"
          position="NORTH_WEST" font="Dialog">Next, is a sample of Java code to generate the structure to pass to the API method setMapLegend:
  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
mapViewer.setMapLegend("#ffffff","255","#ff0000","MEDIUM","NORTH_EAST",legenddata);
Thanks for your comments.
Joao