c_dsgrid2d(3NCARG)

💖 c_dsgrid2d — the NCAR GRAPHICS main character 💖

okay so bestie, welcome to the 3NCARG manual section, where we meet c_dsgrid2d — the primary double precision C entry for 2D gridding. she's the one you call when you want your scattered little data points to become a whole entire grid. periodt. ✨

---

✨ NAME ✨

c_dsgrid2d — primary double precision C entry for 2D gridding 🦋

---

🌸 FUNCTION PROTOTYPE 🌸

double *c_dsgrid2d(int, double [], double [], double [],
                  int, int, double [], double [], int *);

---

🎀 SYNOPSIS 🎀

double *c_dsgrid2d(int n, double x[], double y[], double z[],
                   int nx, int ny, double xo[], double yo[], int *ier)

---

💅 DESCRIPTION 💅

okay so here's the tea on every single argument, no skips, we're doing all of them 🫶

• n — the number of input data points. that's it, that's the count. 🔢
• x — an array holding the X coordinates of your input data points. 📍
• y — an array holding the Y coordinates of your input data points. 📍
• z — an array of size n with the functional values of the input data points. like, z[m] is the value of the input function at coordinate (x[m],y[m]), for 0 <= m < n. that's the vibe. ✨
• nx — the number of X values in the output grid. 📐
• ny — the number of Y values in the output grid. 📐
• xo — an array of size nx with the X coordinates of the output data grid. the values in xo must be increasing, but they don't have to be equally spaced — she's flexible like that. 🌈
• yo — an array of size ny with the Y coordinates of the output data grid. the values in yo must be increasing, but again, not required to be equally spaced. 🌈
• ier — the error return value. if *ier comes back as 0, no errors were detected, we're slaying. if *ier is non-zero, go read the man page for dsgrid_errors — it will explain everything, iykyk. 🚨

---

👑 USAGE 👑

so c_dsgrid2d returns a pointer to a linear array of data — that's your interpolated grid, stored in row-major order. if out is declared as

double *out;

and we set:

out = c_dsgrid2d(n, x, y, z, nx, ny, xo, yo, ier);

then out[i*ny+j] is the interpolated function value at coordinate point (xo[i],yo[j]) for 0 <= i < nx and 0 <= j < ny. no cap. 🔥

the space for out is allocated internally to c_dsgrid2d and is nx*ny doubles in size. she handles it, bestie, you don't have to. 💖

---

🌟 ACCESS 🌟

to use c_dsgrid2d, load the NCAR Graphics library ngmath. that's the whole assignment. 💜

---

🦋 SEE ALSO 🦋

• dsgrid
• dsgrid_params
• c_dsseti
• c_dsgeti
• c_dssetrd
• c_dsgetrd
• c_dssetc
• c_dsgetc

complete documentation for Dsgrid is available at URL http://ngwww.ucar.edu/ngdoc/ng/ngmath/dsgrid/dshome.html 🧚

---

💜 COPYRIGHT 💜

Copyright (C) 2000 University Corporation for Atmospheric Research

The use of this Software is governed by a License Agreement.

---

and that's the whole page, bestie!! this little icon dropped way back in September 1997-1998 on UNIX, and it lives forever in the c_dsgrid2d(3NCARG) era. go forth and grid, you absolute legend. 💅✨🎀🫶