. . .

Context:

A significant benefit of the Infinite Grid^SM approach is the ability to capture legacy data. This set of examples demonstrates this using data captured with a digital camera from the 02 June 2002 Houston Chronicle insert: OFF THE CHARTS - Tropical Storm Allison Public Report. Once the data was captured, the images were stretched and rotated to all be the same size, and then placed as background in a data spread-sheet. This spread-sheet is called Allison_Data.xls, and can be downloaded by clicking here. With the data in a spread-sheet it is simple to copy one of the other spread-sheets and do operations between grid cells. For example, hcct_Allison.xls was created and can be downloaded by clicking here.

Screen Captures:

Digital Photographs From Chronicle:

Note: click on thumbnails for expanded image.

5-Day Rainfall June 5-9	12-Hour Rainfall June 8-9
Rainfall Magnitude June 8-9	Flood Damaged Areas
Harris County Floodplains	Capital Improvement Program 2001-2005
Harris County Watersheds	Harris County Raingauges
Flood Damaged Residences	Home Buyout Applications

Example Showing Steps to Rectifying the Digital Photographs:

Note: click on thumbnails for expanded image.

	The merging and rectifying of these images was accomplished using Adobe Illustrator 9.0.
An image was captured showing the size of the Harris County Spread-Sheet
The Digital Photograph was placed semi-transparently over the Census Track Map, and stretched and rotated to rectify both images	The Digital Photograph was turned from semi-transparent to solid
The result was cropped to be the same size as the original Census Track Map	The White portions of the merged image were colored gray

Digital Photographs after Rectifying and Put in Spread-Sheets:

Note: click on thumbnails for expanded image.

5-Day Rainfall June 5-9	12-Hour Rainfall June 8-9
Rainfall Magnitude June 8-9	Flood Damaged Areas
Harris County Floodplains	Houston City Limits
Harris County Watersheds	Harris County Raingauges
Flood Damaged Residences	Home Buyout Applications

Example of Multiplying Two Maps Together:

Note: click on thumbnails for expanded image.

	*
Houston City Limits	times	Rainfall Magnitude June 8-9
||		||
	=
Rainfall Magnitude Within Houston		Rainfall Magnitude Within Houston on Census Tract Map
||		||
	=
Rainfall Magnitude Within Houston on Census Tract Map		Translation to Census Track Table

Example of Summing Data Points in an IG5 Map Together and Displaying Them as an IG4 Map of Harris County:

Note: click on thumbnails for expanded image.

	--->
Initial Applications for Home Buyouts		Conversion to IG4 with solid background to highlight numbers
		| | V
		Map of Harris County with Composite Home Buyout Applications per IG4 Grid Cell

Next Steps:

This example was put together to allow testing and experimenting with Infinite Grid^SM map operations. It is logical to next identify specific problems (political, governmental, environmental, etc.), capture data concerning these issues, and then to use the Infinite Grid^SM to derive a solution to the problems.

This page is at: http://www.walden3d.com/H/sample/rain/index.html

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Copyright © 2001 Walden 3-D, Inc.
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