---
title: VectorSlope
description: "该函数的功能是创建斜率向量化数组，其公式如下："
url: https://www.hikunpeng.com/document/detail/zh/kunpengboostkithistory/240RC1/accel/kunpengaccel_hmpp_06_0178.html
sourcePath: /source/zh/kunpengboostkithistory/240RC1/accel/kunpengaccel_hmpp_06_0178.html
indexId: 3b44dbccb1ca9fe9c0461bc8ebceec9bf1a31ef875d6f719719c110893630b6477
---
# VectorSlope

该函数的功能是创建斜率向量化数组，其公式如下：

dst[n] = offset + slope * n, n = 1, 2, 3, ...

函数接口声明如下：

- 整型数的操作：
  HmppResult HMPPS_VectorSlope_8u(uint8_t *dst, int32_t len, float offset, float slope);

  HmppResult HMPPS_VectorSlope_16u(uint16_t *dst, int32_t len, float offset, float slope);

  HmppResult HMPPS_VectorSlope_16s(int16_t *dst, int32_t len, float offset, float slope);

  HmppResult HMPPS_VectorSlope_32u(uint32_t *dst, int32_t len, double offset, double slope);

  HmppResult HMPPS_VectorSlope_32s(int32_t *dst, int32_t len, double offset, double slope);

- 浮点数的操作：
  HmppResult HMPPS_VectorSlope_32f(float *dst, int32_t len, float offset, float slope);

  HmppResult HMPPS_VectorSlope_64f(double *dst, int32_t len, double offset, double slope);


#### 参数

| 参数名 | 描述 | 取值范围 | 输入/输出 |
| --- | --- | --- | --- |
| dst | 斜率向量数组指针。 | 非空 | 输出 |
| len | 斜率向量数组元素个数。 | (0,INT\_MAX] | 输入 |
| offset | 偏移值。 | 非空 | 输入 |
| slope | 斜率值。 | 非空 | 输入 |


#### 返回值

- 成功：返回HMPP_STS_NO_ERR。
- 失败：返回错误码。


#### 错误码

| 错误码 | 描述 |
| --- | --- |
| HMPP\_STS\_NULL\_PTR\_ERR | dst这个入参中存在空指针。 |
| HMPP\_STS\_SIZE\_ERR | 长度错误。 |


#### 示例

```
void VectorSlopeExample()
{
int16_t dst[BUFFER_SIZE_T];
int32_t i;
float offset =1.5;
float slope =0.5;
HmppResult result =HMPPS_VectorSlope_16s(dst, BUFFER_SIZE_T, offset, slope);
printf("result = %d\n", result);
if (result != HMPP_STS_NO_ERR) {
return;
}
for (i =0; i < BUFFER_SIZE_T; i++) {
printf("%d ", dst[i]);
}
printf("\n");
}
```

运行结果：

```
result = 0
2 2 2 3 4 4 4 5 6 6 6 7 8 8 8
```