技术问答matlab涓璯riddata鍑芥暟鎬庝箞浣跨敤 - 扬州沐宇科技

griddata鍑芥暟鐢ㄤ簬鍦ㄩ潪瑙勫垯缃戞牸涓婅繘琛屾彃鍊硷紝瀹冨彲浠ユ牴鎹凡鐭ユ暟鎹偣鐨勫潗鏍囧拰鍊硷紝璁＄畻鍑哄搴旂綉鏍肩偣鐨勫€笺€?/p>

griddata鐨勫熀鏈娉曚负锛?/p>

Vq = griddata(X, Y, V, Xq, Yq)

鍏朵腑锛孹鍜孻鏄凡鐭ユ暟鎹偣鐨勫潗鏍囷紝V鏄搴旀暟鎹偣鐨勫€硷紝Xq鍜孻q鏄緟姹傜綉鏍肩偣鐨勫潗鏍囥€?/p>

绀轰緥浠ｇ爜濡備笅锛?/p>

% 鍒涘缓涓€浜涚ず渚嬫暟鎹?/span>
[X, Y] = meshgrid(-2:0.2:2, -2:0.2:2);
Z = X .* exp(-X.^2 - Y.^2);
% 鐢熸垚闈炶鍒欑綉鏍肩偣鍧愭爣
xq = rand(100, 1) * 4 - 2;
yq = rand(100, 1) * 4 - 2;
% 浣跨敤griddata杩涜鎻掑€?/span>
zq = griddata(X(:), Y(:), Z(:), xq, yq);
% 缁樺埗缁撴灉
scatter(xq, yq, 20, zq, 'filled');
colorbar;

姝や唬鐮佸皢鐢熸垚涓€涓簩缁撮珮鏂垎甯冪殑鏁版嵁锛岀劧鍚庨殢鏈洪€夋嫨100涓綉鏍肩偣杩涜鎻掑€硷紝骞剁粯鍒剁粨鏋溿€?/p>