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Legend Shape Size Color
# Legend* Latitude Longitude Shape Size Color

Recommendations & General Instructions

This application makes heavy use of JavaScript. A modern browser like Internet Explorer 8, FireFox 3+, Google Chrome, or Safari 3+ is strongly recommended. Expected behavior cannot be assured when executed using older, legacy browsers.

The pushpin colors are configured using the RGB color scheme and a color selector is provided. By default, "0 0 0" (black) is selected. Shades of gray may be configured by typing variations of identically numbered triples. For example, "10 10 10" is dark gray whereas "100 100 100" is a lighter shade of gray.

Exporting as scalable vector graphic (svg) is recommended because it is a lossless format. Desktop applications for additional editing include: Inkscape, Gimp, CorelDraw, Adobe Illustrator, and Microsoft Visio.

Specimen Selector

Use the Specimen Selector tab to select and plot geocoded specimen records of up to 9 taxa on the preview map. The shapes, sizes, and colors for the markers for records may be selected for each taxon (Figure 1).

Specimen Selector screenshot
Figure 1. Screenshot of specimen selector panel.


Use the Multipoints tab to paste coordinates as latitude, longitude on separate lines and select the marker shape, size, and color for up to 7 different taxa (Figure 2).

Multipoint screenshot
Figure 2. Screenshot of multipoint data input panel.


Use the Singlepoints tab to create up to 13 single markers per taxon on the preview map with each marker having selectable shape, size, and color (Figure 3).

Single point screenshot
Figure 3. Screenshot of single point data input panel.


Use the Preview tab to refine your eventual map export by adjusting various options (Figure 4).

Single point screenshot
Figure 4. Screenshot of map preview panel.

Toolbar buttons:

  • Zoom in: click this icon to draw a zoom region on the preview
  • Zoom out: click this icon to zoom out one step
  • Rotate counter-clockwise: select 5o, 10o, and 15o from the drop-down menu while hovering on this icon
  • Rotate clockwise: as above
  • Crop: click this icon to draw an expandable, square-shaped rubber band that precisely defines a cropped portion of the map you wish to appear in the exported map
  • Refresh: refresh the map image
  • Rebuild: re-render the default presentation at lowest zoom and geographic projection


  • State/Provinces: select this checkbox to draw all State and Province borders for all countries
  • water bodies: select this checkbox to draw rivers as black outlines and lakes as greyscale polygons


  • scalebar: select this checkbox to draw a scalebar at the bottom on the map (not included in the download)
  • graticules: select this checkbox to draw a graticule (grid) layer on the map (will be included in the download)
  • projection: choose among several projections. [Hint: first use zoom while on the base geographic projection]

Export Map/Legend:

Export the map as high resolution tiff or scalable vector graphic (svg). The latter is recommended because it is lossless. The resultant export will not include the legend; it may be exported as a separate png file.


This application was developed by David P. Shorthouse while employed by the Marine Biological Laboratory, Woods Hole, MA.


Underlying ArcView shapefiles were obtained from Natural Earth, http://www.naturalearthdata.com/ and the mapping software used is MapServer, http://mapserver.org.