53 lines
1.4 KiB
Markdown
53 lines
1.4 KiB
Markdown
# Setting the coordinates of a three-dimensional vector
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[Русская версия / Russian version](set-values-rus.md)
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You can set the coordinates of vectors either directly or using functions.
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The functions for setting coordinate values allow you to do this in one line.
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Function for **BGC_FP32_Vector3**:
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```c
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inline void bgc_fp32_vector3_set_values(BGC_FP32_Vector3* const destination, const float x, const float y, const float z);
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```
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Function for **BGC_FP64_Vector3**:
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```c
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inline void bgc_fp64_vector3_set_values(BGC_FP64_Vector3* const destination, const double x, const double y, const double z);
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```
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Each of these functions is equivalent to the following lines of code:
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```c
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destination->x = x;
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destination->y = y;
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destination->z = z;
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```
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Invalid pointers should not be passed in the **destination** parameter.
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The NULL (0) value is also considered invalid.
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This function is good for setting up the initial values of coordinates with
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one-line especially when the values are fixed constants like in the example
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below.
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Example of use:
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```c
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#include <stdio.h>
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#include <basic-geometry.h>
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int main()
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{
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BGC_FP32_Vector3 my_vector;
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bgc_fp32_vector3_set_values(&my_vector, -2.2f, 7.1f, 10.01f);
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printf("x = %f, y = %f, z = %f\n", my_vector.x, my_vector.y, my_vector.z);
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return 0;
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}
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```
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[Documentation](../intro-eng.md) / [3D vectors](../vector3-eng.md)
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