Kstars

lambertprojector.cpp
1/*
2 SPDX-FileCopyrightText: 2010 Henry de Valence <hdevalence@gmail.com>
3
4 SPDX-License-Identifier: GPL-2.0-or-later
5*/
6
7#include "lambertprojector.h"
8
9LambertProjector::LambertProjector(const ViewParams &p) : Projector(p)
10{
11 updateClipPoly();
12}
13
14Projector::Projection LambertProjector::type() const
15{
16 return Lambert;
17}
18
20{
21 return 1.41421356;
22}
23
24double LambertProjector::projectionK(double x) const
25{
26 return sqrt(2.0 / (1.0 + x));
27}
28
29double LambertProjector::projectionL(double x) const
30{
31 return 2.0 * asin(0.5 * x);
32}
double projectionK(double x) const override
This function handles some of the projection-specific code.
double radius() const override
Get the radius of this projection's sky circle.
Projection type() const override
Return the type of this projection.
double projectionL(double x) const override
This function handles some of the projection-specific code.
The Projector class is the primary class that serves as an interface to handle projections.
Definition projector.h:58
This is just a container that holds information needed to do projections.
Definition projector.h:37
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