Friday, March 30, 2012

WEEK 10_GIS3015 - FLOW MAPPING

This weeks topic was Flow Mapping.


Process Summary: 
  1. Navigate to s:drive.  Create a folder for the week; Week 10_Flow Mapping.
  2. Navigate to r:drive and download this weeks shapefiles, 2 excel documents and the pdf file.
  3. Paste to Week 10_Flow Mapping and unzip world.zip and states.zip.
  4. Open ArcCatalog and Minimize.  Navigate to the Week 10 folder. Bring up the files and view properties of the two shapefiles – No Projection.
  5. Open ArcMap Window and minimize.  Drag the two shapefiles into ArcMap from ArcCatolog.
  6. Adjust the Map before converting to illustrator. Change to layout view. Change to landscape. Insert Neatline – Inside Margins with a Gap of 10, Border 2.0, Background – Blue, Drop Shadow – Grey 60%.
  7. Save:  Week 10 Map_AK.mxd
  8. Add Scale Bar: Alternative 2 – miles.  Title “2007 Immigration to the United States”. Author, date and Source (2007 INS Statistical Yearbook).  Legend – allow for 8 different legends for each of the 8 regions to Map (USA, Africa, Asia, Europe, North America, South America, Oceania and Uknown/Australia) – additionally for legend border = 1.0 point, background = grey 40%, drop shadow = grey 60%, Gap = 10, Remove the term “Legend” prior to finishing inserting the legend.
  9. Save and then Export File as Week 10 Map_AK.ai under the week 10 folder. Exit out of ArcMap and open iIlustrator from the start menu.  When you receive error message be sure to choose “update”.
  10. Insert 4 new layers and title: Map Title, North Arrow, Legend and Author.  Move the respective items to each from the “Other 3” layer.  Rename the Other 3 layer to Scale once have moved all other items out of it.  Add a final layer titled “Flow Lines”.  Lock all the layers that you are done with and do not want to alter.
  11. In Excel, calculate the width of your line using the formula; width of line symbol = (maximum line width = 10 here) X (Value/Maximum Value).  Then insert corresponding stroke points to be able to reflect the line widths appropriately on the map Multiply the calculated Flow line width by “3” points.
  12. Using the pencil tool draw the lines.  Add arrows to the end pointing at the United states using the Arroheads option from the stroke menu – Scale 30%.  Match arrow color to that of the region.  Add the text to the arrow = population migrating into the united states from the shown region.  Example Details on Arrowheads:
  13. Asia – Sroke point 30 – right arrowhead, scale 30, color to match.
  14. Europe – Sroke point 17 – right arrowhead, scale 20, color to match.
  15. Once done drawing the arrow heads, insert the populations and align on the flow line.
  16. Lock all layers.  Save and Export file as a Jpeg.


           

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