diy cartography
Post on 17-Jul-2015
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DIY CartographyTudor Pavel
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What you needA poorly made drawing of a parking
GIMP Image Editor
A little patience (Twelve-step program*)
* http://en.wikipedia.org/wiki/Twelve-step_program
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The poorly made drawing ofPiata Marasti parking
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To overlay the image on themap, you need:
The image (doh!), but parking rotated withNorth up
Its width (in mm)
Its height (in mm)
Its scale (1:x)
Coordinates of image center (LatLng)4 / 31
Step 1: Screenshot Google Maps
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Step 2-1: Select measure tool
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Step 2-2: Measure angle (65)
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Step 3: Import drawing
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Step 4-1: Select rotate tool
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Step 4-2: Rotate drawing
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Step 5-1: Use scale tool
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Step 5-2: And move tool
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Step 5-3: Scale and Move
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Step 6: Guides for Image Center
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Step 7: Get Image Centercoordinates
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Shopping list updateThe image (doh!), but parking rotated withNorth up
Its width (in mm)
Its height (in mm)
Its scale (1:x)
Coordinates of image center (LatLng) ->(46.776649, 23.611951)
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Step 8-1: Use fuzzy select tool
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Step 8-2: Select unnecessarywhiteness
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Step 8-3: And clean it up
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Step 8-4: Export it
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Shopping list updateThe image (doh!), but parking rotated withNorth up
Its width (in mm)
Its height (in mm)
Its scale (1:x)
Coordinates of image center (LatLng) ->(46.776649, 23.611951)
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Step 9-1: Go to scale image
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Step 9-2: Change to mm to getwidth+height
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Shopping list updateThe image (doh!), but parking rotated withNorth up
Its width (in mm) -> 263 mm
Its height (in mm) -> 228 mm
Its scale (1:x)
Coordinates of image center (LatLng) ->(46.776649, 23.611951)
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Step 10-1: Measure wall in image
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Step 10-2: Measure wall in real lifewith coordinates of the building
corners
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Calculate image scale44790(mm) / 149(mm) = 300.6
=~ 1:300
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Shopping list doneThe image (doh!), but parking rotated withNorth up
Its width (in mm) -> 263 mm
Its height (in mm) -> 228 mm
Its scale (1:x) -> 300
Coordinates of image center (LatLng) ->(46.776649, 23.611951)
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Step 11: Upload
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Step 12: Cigar
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