---
title: kml_?_interp2d_get
description: "返回数组zarr在网格(i, j)的值zij。"
url: https://www.hikunpeng.com/document/detail/zh/kunpenghpcs/hpckit/devg/kunpengaccel_kml_0526.html
sourcePath: /source/zh/kunpenghpcs/hpckit/devg/kunpengaccel_kml_0526.html
indexId: 75156bd5e537dc55ee5f9ef6e839bd6deb1c748822ef275a12b57bd2c10a947261
---
# kml_?_interp2d_get

返回数组zarr在网格(i, j)的值zij。

#### 接口定义

float kml_float_interp2d_get(const kml_float_interp2d *interp, const float zarr[], const size_t i, const size_t j)

double kml_double_interp2d_get(const kml_double_interp2d *interp, const double zarr[], const size_t i, const size_t j);


#### 参数

| 参数名 | 类型 | 描述 | 输入/输出 |
| --- | --- | --- | --- |
| interp | const kml\_float\_interp2d\* / const kml\_double\_interp2d\* | 指向插值对象的指针。 | 输入 |
| zarr | float类型数组 / double类型数组 | 存有z值的数组。 | 输入 |
| i | size\_t | x方向的index。 | 输入 |
| j | size\_t | y方向的index。 | 输入 |


#### 依赖

#include "kipl.h"


#### 示例

```
const size_t xSize = 4;
const size_t ySize = 4;
float xArr[4] = {1,1.33,1.67,2};
float yArr[4] = {1,1.33,1.67,2};
float* zArr = (float*)malloc(xSize * ySize * sizeof(size_t));
float x = 1;
float y = 1;
float z = 0;
kml_float_interp2d *interp = kml_float_interp2d_alloc(kml_float_interp2d_bicubic, xSize, ySize);
kml_float_interp2d_init(interp, xArr, yArr, zArr, xSize, ySize);
z = kml_float_interp2d_get(interp, zArr, x, y);
```