The Preview Map shows a simple line plot with labels of the selected points, and allows you to view the overall context of the points. Unlike the aerial photo and topo maps, the preview map is scaled so all of the selected points are shown, thereby providing a useful "Thumbnail" plot of the points.

 

To use the Preview Map, first select the points from the desired grid, then click Preview from the toolbar or main menu. The preview map will appear with the points plotted.

 

The form contains only a few controls:

• Draw - forces a re-draw of the Selected points. This is useful if you go back to the main grid and select additional points, without closing the Preview window
• Draw Points/Lines/Labels - selects the items to draw on the maps. Labels refer to the Ident column of the main grid. Checking/unchecking causes an immediate redraw of the items.
• Zoom In/ Zoom Out - rescales the map appropriately. The points are initially drawn with the scale set to show all of them. Zooming allows you to examine certain areas.
• Plot Color - changes the plotting color for the items
• Pointer Label - shows the current Lat/Long coordinates of the cursor arrow as it moves over the plot area
• Scroll arrows - moves the map in the direction indicated, and replots the points