The versatility of the iPad2, has been extended for building survey purposes, for the use of architects, facilities managers, real estate owners and building accessors, by the introduction of OrthoGraph Building survey software by ProFM.
The software delivers ease of use, which for this application scenario is vital, as the suggested use requires the “surveyor” to be mobile, YET ACCURATE. Traditional means have comfortably delivered mobility, but have been lacking in the accuracy department. Lets take a look at the functionality:
I have chosen to use the landscape/horizontal mode of the iPad (portrait is also available).
Landscape orientation, offers a constant view of the building hierarchy with show and hide functionality on the left side. Next I have selected to draw a freehand shape of the building or room, with a wall width, height and offset side. I have selected automatic dimension display, to gain immediate feedback on the sizes I have sketched out.
Each “corrected” numeric entry I make is highlighted in red as a segment and it’s corner nodes are changed from red questionmarket circles, to green ticket circles, so visually, it is very easy to see which dimensions I have entered (probably in accordance with my on site survey process).
Next, I switch to the elements tab at the top, where I can select element types such as doors, windows and objects. I start with a double door. Insert it and then use the “inspector” to review its settings.
After insertion of several doors and windows, I proceed to checking the positioning of these doors and windows, by performing numeric entries of “setting out” dimensions, from corners I have previously verified (green ticket circles) by my onsite survey. You will note the same green visual circles for the nodes of the doors and windows, with accompanying red dimensions.
Now to create a second building. Using the building hierarchy on the left, I create a new building and stipulate it’s relationship to the first. Again I use the sketch tool. This time I draw very poorly and get a “skew” edged building.
Using the nodal adjustment tools under the drawing tab, I am able to simply drag and snap the node to correct the “skew” edge.
Insertion of doors and windows follow. With object aswell, as per the pop up object selection menu.
The “inspectors” used in the following images, show various elements of the project, including the buildings, being analysed for accuracy, whilst still on site.
The Orthograph “model” that is created, can be exported directly to ArchiCAD, with all 3D and data attributes (BIM) included in the export process.
Note that attributes such as floor level and height are available for input, via Orthograph, whilst still on site. This means that split level surveys are handled comfortably.
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