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  • Writer's pictureHammer Missions

Overlaying CAD files with Drone Data

Updated: Jan 23


Overlaying plans or CAD drawings onto a map is not a new concept and has been used in the construction & survey industry for quite some time, here at Hammer Missions we have taken that one step further by allowing you to overlay CAD file on top of drone data!


By using Hammer Missions you can now overlay plans, be it floor plans, CAD drawings, road maps, or any other type of plan, over the top of your captured and processed 2D drone data.


This short tutorial will take you through the steps to get your overlays placed on top of your existing captured 2D drone data.


There is now an option to produce both 2D and 3D mapping data when you process your imagery.


Hammer Missions currently supports overlays in the following formats: . PNG . JPG . DXF

Video Walkthrough



Data credit: Field Tech Survey



Method 1. Overlays in DXF format (Recommended)


In this example, we will be using a DXF file exported from Civil 3D and importing that into Hammer Hub. This concept can be used for any type of 2D map, from a large open space to a construction site.


As long as you have the correct overlay for the area or site and the EPSG code for the coordinate system of the DXF File, your overlay will work correctly.


1: Select your captured 2D processed map in Hammer Hub projects.


Open Project
Open 2D Project


2: With your 2D map open in Hammer Hub select the overlay icon in the top right-hand corner, highlighted below in red.



Select CAD Overlay Button
Select CAD Overlay Button

3: A new pop-up will now open where your overlay details will need to be input.


You will need to select the DXF file and input the correct EPSG coordinate system for the file. It's really important to input the correct coordinate system for the file to be correctly geo-positioned.




Select Overlay Options
Select Overlay Options


4: Select your overlay using the select file option. This will now open your finder or explorer for you to select your file.



Overlay Imported
Overlay Imported


Method 2. Overlays in PNG / JPG format


In this example, we will be using a capture of Newark (as shown in the title image). This concept can be used for any type of 2D map, from a large open space to a construction site.


As long as you have the correct overlay for the area or site you are planning the overlay will work correctly.



1: Select your captured 2D processed map in Hammer Hub projects.



2: Make sure you have your overlay to hand as you will need it for the next stage



3: With your 2D map open in Hammer Hub select the overlay icon in the top right-hand corner, highlighted below in red.



4: A new pop-up will now open where your overlay details will need to be inputted.



5: Select your overlay using the select file option. This will now open your finder or explorer for you to select your file.


Once you have selected your file press continue.



6: The next step is to configure the geographical boundary in which your overlay will sit.


The bounding box represents a rectangle in geographical coordinates where the file should be placed. The rectangle is constructed from the points at its north-east and south-west corners


These boundary coordinates can be taken from google maps.


In our case for our Newark overlay, the coordinates from google maps were as follows:


North: 40.773941, East: -74.12544


South: 40.712216, West: -74.22655


These coordinates can then be inputted into the relevant dialog boxes as shown below:



Once you have inputted the correct coordinates press continue.


7: Now all the relevant data has been added you can press upload to add your overlay to the 2D map.



8: Now the data has been uploaded you will see that the overlay fits perfectly over the original 2D map.




Summary


We hope this article helps you understand how to add overlays to your 2D maps in Hammer Missions If you'd like to learn more about how to capture high-quality data and get the most out of your drone flights using our cloud-based platform, please feel free to visit our learning resources. If you haven't got a Hammer account and would like to try Hammer Missions you can get started on our free trial. To learn more about our enterprise solutions, including mission collaboration, data processing, and AI solutions, please contact us at team@hammermissions.com. We look forward to hearing from you. — Team at Hammer Missions


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