DIY Cartography

Download DIY Cartography

Post on 17-Jul-2015

46 views

Category:

Software

5 download

Embed Size (px)

TRANSCRIPT

<ul><li><p>DIY CartographyTudor Pavel</p><p>1 / 31</p></li><li><p>What you needA poorly made drawing of a parking</p><p>GIMP Image Editor</p><p>A little patience (Twelve-step program*)</p><p>* http://en.wikipedia.org/wiki/Twelve-step_program</p><p>2 / 31</p>http://en.wikipedia.org/wiki/Twelve-step_program</li><li><p>The poorly made drawing ofPiata Marasti parking</p><p>3 / 31</p></li><li><p>To overlay the image on themap, you need:</p><p>The image (doh!), but parking rotated withNorth up</p><p>Its width (in mm)</p><p>Its height (in mm)</p><p>Its scale (1:x)</p><p>Coordinates of image center (LatLng)4 / 31</p></li><li><p>Step 1: Screenshot Google Maps</p><p>5 / 31</p></li><li><p>Step 2-1: Select measure tool</p><p>6 / 31</p></li><li><p>Step 2-2: Measure angle (65)</p><p>7 / 31</p></li><li><p>Step 3: Import drawing</p><p>8 / 31</p></li><li><p>Step 4-1: Select rotate tool</p><p>9 / 31</p></li><li><p>Step 4-2: Rotate drawing</p><p>10 / 31</p></li><li><p>Step 5-1: Use scale tool</p><p>11 / 31</p></li><li><p>Step 5-2: And move tool</p><p>12 / 31</p></li><li><p>Step 5-3: Scale and Move</p><p>13 / 31</p></li><li><p>Step 6: Guides for Image Center</p><p>14 / 31</p></li><li><p>Step 7: Get Image Centercoordinates</p><p>15 / 31</p></li><li><p>Shopping list updateThe image (doh!), but parking rotated withNorth up</p><p>Its width (in mm)</p><p>Its height (in mm)</p><p>Its scale (1:x)</p><p>Coordinates of image center (LatLng) -&gt;(46.776649, 23.611951)</p><p>16 / 31</p></li><li><p>Step 8-1: Use fuzzy select tool</p><p>17 / 31</p></li><li><p>Step 8-2: Select unnecessarywhiteness</p><p>18 / 31</p></li><li><p>Step 8-3: And clean it up</p><p>19 / 31</p></li><li><p>Step 8-4: Export it</p><p>20 / 31</p></li><li><p>Shopping list updateThe image (doh!), but parking rotated withNorth up</p><p>Its width (in mm)</p><p>Its height (in mm)</p><p>Its scale (1:x)</p><p>Coordinates of image center (LatLng) -&gt;(46.776649, 23.611951)</p><p>21 / 31</p></li><li><p>Step 9-1: Go to scale image</p><p>22 / 31</p></li><li><p>Step 9-2: Change to mm to getwidth+height</p><p>23 / 31</p></li><li><p>Shopping list updateThe image (doh!), but parking rotated withNorth up</p><p>Its width (in mm) -&gt; 263 mm</p><p>Its height (in mm) -&gt; 228 mm</p><p>Its scale (1:x)</p><p>Coordinates of image center (LatLng) -&gt;(46.776649, 23.611951)</p><p>24 / 31</p></li><li><p>Step 10-1: Measure wall in image</p><p>25 / 31</p></li><li><p>Step 10-2: Measure wall in real lifewith coordinates of the building</p><p>corners</p><p>26 / 31</p></li><li><p>Calculate image scale44790(mm) / 149(mm) = 300.6</p><p>=~ 1:300</p><p>27 / 31</p></li><li><p>Shopping list doneThe image (doh!), but parking rotated withNorth up</p><p>Its width (in mm) -&gt; 263 mm</p><p>Its height (in mm) -&gt; 228 mm</p><p>Its scale (1:x) -&gt; 300</p><p>Coordinates of image center (LatLng) -&gt;(46.776649, 23.611951)</p><p>28 / 31</p></li><li><p>Step 11: Upload</p><p>29 / 31</p></li><li><p>Step 12: Cigar</p><p>30 / 31</p></li><li><p>31 / 31</p></li></ul>