Displaying 4 results from an estimated 4 matches for "spll".
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sell
2012 Sep 02
1
why variations in accuracy between R to ARCGIS for the same point reprojection?
...S(Latitude)))^2)
where Re is the radius of the Earth at the tropics(6378km) and e is
the eccentricity of the ellipsoid (0.081082).
According to several books I used, the position of a point in the
Y-axis in the Berhmann projection could be estimated as:
=Re*(SIN(RADIANS(Latitude))/COS(RADIANS(Spll)))
where Spll is the standard parallel, which in the Berhmann's projection is 30.
Unfortunately, the resulting output, although similar in shape to the
outputs in R and Arcgis, is still not quite the same. Any thoughts why
these differences in supposedly the same calculations?
Any input wi...
2013 Nov 16
0
[PATCH] drm/nouveau/clk: Implement reclocking for NVAA/NVAC
...stead of a right-shift number. */
+ if(P1 > 2) {
+ P2 = P1 - 2;
+ P1 = 2;
+ }
+
+ priv->csrc = nv_clk_src_core;
+ priv->ccoef = (N << 8) | M;
+
+ priv->cctrl = (P2 + 1) << 16;
+ priv->cpost = (1 << P1) << 16;
+ }
+
+ /* sclk: nvpll + divisor, href or spll */
+ out = 0;
+ if (shader == clk->read(clk, nv_clk_src_href)) {
+ priv->ssrc = nv_clk_src_href;
+ } else {
+ clock = calc_pll(priv, 0x4020, shader, &N, &M, &P1);
+ if (priv->csrc == nv_clk_src_core) {
+ out = calc_P((core << 1), shader, &divs);
+ }
+
+ if (abs...
2013 Nov 17
0
[PATCH] drm/nouveau/clk: Implement reclocking for NVAA/NVAC
...stead of a right-shift number. */
+ if(P1 > 2) {
+ P2 = P1 - 2;
+ P1 = 2;
+ }
+
+ priv->csrc = nv_clk_src_core;
+ priv->ccoef = (N << 8) | M;
+
+ priv->cctrl = (P2 + 1) << 16;
+ priv->cpost = (1 << P1) << 16;
+ }
+
+ /* sclk: nvpll + divisor, href or spll */
+ out = 0;
+ if (shader == clk->read(clk, nv_clk_src_href)) {
+ priv->ssrc = nv_clk_src_href;
+ } else {
+ clock = calc_pll(priv, 0x4020, shader, &N, &M, &P1);
+ if (priv->csrc == nv_clk_src_core) {
+ out = calc_P((core << 1), shader, &divs);
+ }
+
+ if (abs...
2013 Nov 09
2
[PATCH] drm/nouveau/clk: Initial implementation for reclocking NVAA/NVAC
Reclocking of NVAA/NVAC is substantially different from NV50+, enough to justify a separate clock implementation. This code is a forward-port of reclocking code that has been sitting in a branch for a while, and has been tested on my NVAC. Traces show no significant reasons why this shouldn't work on NVAA, but testers are always welcome. And since these are IGPs without dedicated RAM to