I’m working on a few site renderings using a combination of tools, including SketchUp 2018, Civil3d 2016 (2013), Google Earth Pro, and Photoshop, but I am having trouble achieving a final product due to software compatibility issues and/or coordinate and datum synchronization. My goal is to generate a model that can be imported into Google Earth so that the proposed features can be realistically visualized within the existing topographic context from a number of various perspectives. A general summary of my workflow follows:
- Develop proposed site layout in Civil3D over an existing conditions GIS/Land Survey basemap projected in the GA East State plane coordinate system (NAD83).
- Prepare individual 3D models and components in SKETCHUP (to scale, and customized to match dimensions determined in layout).
- Export each proposed feature from SKETCHUP to “.3ds” file, and import each .3ds model into CIVIL3D, convert to a “.dwg” file (Block), and insert into initial CIVIL3D layout drawing at the precise XYZ coordinates.
- Export 3d Objects from CIVIL3D to GOOGLE EARTH using the “Export KML” utility in CIVIL3D using designating the coordinate system.
- Prepare additional individual 3d models to be used for context (vehicles, trees, people, utilities, etc…).
***Everything works great up to this point, but I ran into trouble once I began adding contextual features (Cars, trees, etc…). Basically, Google earth struggled to render the more complicated 3d warehouse components I had chosen and ultimately converted to blocks in CAD (using the same process described in the previous steps). Therefore, I changed my approach, and attempted to generate all the contextual elements directly in SKETCHUP and utilize the Geo-Location tools to determine the approximate placement of each object and tried exporting the entire model to GOOGLE EARTH as a separate “.KMZ” file/layer. While I the components appeared in the correct horizontal position, they were floating 20-30 feet above the surface. Despite several experimental attempts to correct this, I have been unable to successfully get these components “clamped” to the ground plane.
Please let me know if there something I can do to resolve this issue?