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COLLECTING BUILDING INFORMATION

Building Map

a) Navigate to building map

  •  Select the Building Map option on the dashboard.
  •  Once clicked, the map interface is displayed. 

                                                                                     Figure 5-1 Building Map

Overview:

  • The Building Map option displays the map interface where the user can collect the building footprint by placing markers on the map. 

Building data collection

  • Once the map is visible, click on the Locate Myself button to find the users exact location on the map and insert the first marker.
  • Then click at different positions of maps to create an approximate outline of the building using distance information shown between markers as guidelines.
  • The user can also turn the WMS layer on to view the pre-existing buildings so that no wrong data is entered.

 If the user wants to delete one of the already placed markers, click on the marker to delete it.


Figure 5-5 Save Button on Map

  • The distance between the markers is shown on top of the markers. The distance can be visualized by following the sequence in which the points are marked. The distance between the first and second marker is shown on top of the second marker (12m). The distance between the second and third maker is shown on top of the third marker (11m), the distance between the third and fourth maker is shown on top of the fourth marker (12m) and the distance between the fourth marker and the first marker is shown on top of the first marker (10m).
  • Once the user is satisfied with the generated outline, click the Save button to accept collected building information. Click the Next button to proceed.

  • The user is prompted with a dialogue box requesting for Building Identification Number (temporary) and Tax Code of the building. Fill in the data and click the Save button. Then after, markers in the map are cleared.

     


                                                                             Figure 5-6 Building data collection with site visit

Overview:

  • Physically visiting the site is recommended. Go around the building to get a rough idea about the orientation and length of the building.

  • Stay at a corner of the building where it has a clear and unobstructed view of a large portion of the sky.

  • Nearby buildings and trees can prevent GPS signals from the satellites reaching the receiver. GPS receivers on phone need some time to first acquire signals from satellites, therefore allow couple of minutes to acquire signals from satellites.

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