44 lines
1,021 B
Markdown
44 lines
1,021 B
Markdown
# Setting the coordinates of a two-dimensional vector
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You can set the coordinates of vectors either directly or using functions. The functions for setting coordinate values allow you to do this in one line.
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Function for **BgcVector2FP32**:
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```c
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inline void bgc_vector2_set_values_fp32(const float x1, const float x2, BgcVector2FP32* to);
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```
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Function for **BgcVector2FP32**:
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```c
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inline void bgc_vector2_set_values_fp64(const double x1, const double x2, BgcVector2FP64* to);
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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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to->x1 = x1;
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to->x2 = x2;
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```
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Invalid pointers should not be passed in the **to** parameter. The NULL (0) value is also considered invalid.
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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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BgcVector2FP32 my_vector;
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bgc_vector2_set_values_fp32(-2, 7, &my_vector);
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printf("x1 = %f, x2 = %f\n", my_vector.x1, my_vector.x2);
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return 0;
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}
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```
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[Documentation](../intro-eng.md) / [2D vectors](../vector2-eng.md)
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