');
if (parent.UseDownload=='Y') {
//LocalString += ('
');
LocalString += ('');
//LocalString += ('');
}
}
LocalString += '');
return LocalString;
}
//*****************************************************************************
// Function GetOGCTOC_Layer_Download
// This function generates the HTML code for the individual layers downloading
// by getOGCDownloadList above. This was broken out to make the code a little easier
// to read, parse and work with. It will take a Category, LayerID and
// information on the current scale and layer within a category to generate
// table rows showing the layer names. This allows for a different style
// of TOC to be drawn, yet display the same layers. The table rows should
// be 3 columns.
//*****************************************************************************
function GetOGCTOC_Layer_Download(CategoryLayerID, CategoryID, LayerID, CurrentMapScale) {
//alert("entering GetOGCTOC_Layer_Download");
//If using the Group rendering then grouped layers only get 1 TOC entry, so
//we do a check to see if one TOC entry has already been displayed...
Temp_Keyword = -1;
Test_For_Group_Display = false;
// if (USGS_Group_Loaded) {
// Temp_Keyword = IVM_Keyword_check(Download_SRC_Layer_Name[LayerID]);
// if (Temp_Keyword>-1) {
// Test_For_Group_Display = IVM_Selected_Layer_Displayed[Temp_Keyword];
// }
// }
if (!Test_For_Group_Display) {
//Indent the layer by putting a space in the first column where the expand/collapse icon is in the category name
var LocalString = (' Layers
');
LocalString += ('');
if (parent.UseDownload=='Y') {
//LocalString += ('
');
LocalString += ('');
//LocalString += ('');
}
}
LocalString += '');
return LocalString;
}
//*****************************************************************************
// Function Check_Layer_Download_Extent_and_Scale
// This function checks a layer to see if it is outside of the current extent
// or the current scale is outside of the layer's scale. It returns true only
// if the layer's extent is inside the current extent or the current scale is
// inside the layer's scale range.
//*****************************************************************************
function Check_Layer_Download_Extent_and_Scale(LayerID, MapLeft, MapBottom, MapRight, MapTop, MapScale) {
var tempCheck = true;
//Check the layer's scale factor to see if we should display it
if (Download_SRC_Layer_Min_Scale[LayerID] != 0 || Download_SRC_Layer_Max_Scale[LayerID] != 0) {
if (Download_SRC_Layer_Min_Scale[LayerID] != 0 && Download_SRC_Layer_Min_Scale[LayerID] > MapScale) {
//Below Minimum Scale
tempCheck = false;
} else if (Download_SRC_Layer_Max_Scale[LayerID] != 0 && Download_SRC_Layer_Max_Scale[LayerID] < MapScale) {
//Above Maximum Scale
tempCheck = false;
}
}
//If we have not already gotten a negative, then don't need to check the layer extent
if (tempCheck) {
if (Download_SRC_Layer_Extent_Right[LayerID] <= MapLeft) {
//Layer extent is to the left of the map
tempCheck = false;
} else if (Download_SRC_Layer_Extent_Left[LayerID] >= MapRight) {
//Layer extent is to the right of the map
tempCheck = false;
} else if (Download_SRC_Layer_Extent_Bottom[LayerID] >= MapTop) {
//Layer extent is above the map
tempCheck = false;
} else if (Download_SRC_Layer_Extent_Top[LayerID] <= MapBottom) {
//Layer extent is below the map
tempCheck = false;
}
}
return tempCheck;
}