CODEWITHSUNDEEP
c++opensg
JulianSmith95
JulianSmith95

Reputation: 41

OpenSG - Get each axis of each vertex

How would I go about getting each individual axis from each vertex in OpenSG? For example I want to get the x axis value "1.5" from "1.5, 3, 2".

Upvotes: 0

Views: 44

Answers (1)

maddin45
maddin45

Reputation: 747

I assume that you already know how to get the vertices and are only struggeling to read the individual components. Also I assume that you are using OpenSG 2, although I think that the same functions are alvailable in OpenSG 1.8 as well.

OpenSG's Point and Vector classes offer the x(), y(), z() and w() function to access the first, second, third and fourth vector component respectively. You can also access the underlying array which stores the vector data with getValues(). Using an index into the array you get the nth vector component of your vertex' position.

OSG::Pnt3f p(1.5, 3, 2);

// prints
// The x-component is: 1.5
std::cout << "The x-component is: " << p.x() << "\n";

// prints
// Component 0 is: 1.5
// Component 1 is: 3
// Component 2 is: 2
for (unsigned int i = 0; i < 3; i++)
{
    std::cout << "Component " << i << " is: " << p.getValues()[i] << "\n";
}

Note There are not many OpenSG users on StackOverflow. You will probably get better help if you write to the OpenSG Users Mailing List.

Upvotes: 1

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