Plumb-Bob is a perspective rectifier for macOS. Plumb-Bob is useful in many fields, architectural survey, building renovation, furnishing design, estate agents, and it...
Commercial
with plumbbob you are able to transform an usual picture in a plan view.
how it works?prerequisites:1. a picture not too big (2 megapixels are enough), where four known key points are clearly visible.2. the real coordinates of the 4 key points. these points have to lay on the same plan we want to survey and they have not to be on the same line (not collinear). the more distant the points are and the less will be the margin of error.
GIMP is a free program for such photo retouching, image composition and image authoring. Essentially it's the closest thing to Photoshop you can get for free.
FreeOpen SourceMac OS XWindowsLinuxBSDHaikuXfceAmigaOS
A fully featured, user friendly, open source Geographic Information System (GIS) with similar power to ArcGIS and MapInfo.
FreeOpen SourceMac OS XWindowsLinuxAndroidBSD
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