54v}iG  
  看了help里面的說明，如下： 8do-z"-  
n' &:c}zKO  
  A candela plot is a plot of luminous intensity, or flux per solid angle. In photometric units, a luminous intensity plot is in units of candelas, or lumens per steradian. In radiometric units, the corresponding quantity is called intensity, and has units of watt/steradian. Candela plots are commonly used in the design of illumination systems. TF2'-"2Y  
4~4D1  
  但還是不懂，它跟Irradiance/Illuminence maps有什么區(qū)別呢？ 4+Wti!s  
菜鳥問題，請賜教！

Polar ISO-Candela Plot是極坐標坎德拉圖，既以極軸形式標識燈具光強在空間中德分布情況， G*^4+^Vz?  
而Irradiance/Illuminence maps為某個參考面德照度圖，irradiance及illuminance不同是首先由于選取德參考單位不一樣，一個是radiometric（需仿真光源德輻射光電效率時）,而另一個是    Photometric（仿真光源德照射光效率）,

學習..................

    十分感謝一樓！ )s