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Hybrid Drone, fixed wing and copter with one propeller
By Lurker,
There are helicopter drones and fixed-wing drones, but creating a hybrid of both is tricky. Even Parrot's Swing, as clever as it is, needs four propellers and elaborate wings to pull off its stunt. However, TU Delft (with backing from Parrot) has a far more elegant solution. Its DelftAcopter drone doubles as both a fixed-wing aircraft and a helicopter using only one propeller -- its tailless biplane design lets it take off and hover vertically, but gracefully turn into a fast-moving airplane (up
Google releases SLAM tool Cartographer to open source
By Lurker,
After internally using it for two years, Google has announced the open-source release of its thematic mapping library Cartographer. The tool is designed to enable real-time simultaneous localization and mapping, better known by its acronym SLAM, and has the capability to build a 2D or 3D map while keeping track of an individual or robotic agent’s location on that map.
SLAM algorithms combine data from various sensors – for instance Light Detection and Ranging (LiDAR) systems and cameras — t
How to use set deflection(right click while drawing lines) through arcpy?
By kron,
The set deflection option can be used to create a segment at a +-angle from a an existing line segment. This is exactly what i need but with the ability to run it several times in a loop.
In this case the vertex of the starting point is selected and the reference line segment is selected and 'set deflection' option is used to constrain the line to be drawn in a particular direction.
bearing distance to line is very static. you have to specify every parameter. can somebody guide me to use it
Reduce html popup image size in Dataeast Carrymap for ArcGIS
By nnico,
Hello to all. Have a problem with creting html popup with Carrymap in ArcGIS. Images appears too big for popup. Script for image insert:
<% var tag = '<img src="';
tag += CF.Values["img"] + ".JPG";
tag += '">';
echo (tag);
%>
Could I change image size in pixels or percents in script?
How to have a DEM for plant height
By laura_p,
Hello everyone,
I'm here to post a very basic question about DEMs.
Can a DEM be derived only with Lidar\Radar technologies? Or are there ways to elaborate a DEM also from optical?
I am working on crop classification and it would be extremely useful for me to be able to derive plant height from the optical data I'm working with (both Landsat8 and Sentinel2).
Thank you for your attention,
Laura
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