![]() The PPI number tells you how many pixels fit into one inch and thus how large the pixels appear in the real world. Rendered Pixels Finally, computed pixels are displayed on the physical screen. Higher scale factors result in higher level of detail. Point coordinates are multiplied by scale factor to get pixel coordinates. Points Point-based drawings are rendered into pixels. Points are abstract units, they only make sense in this mathematical coordinate space. Physical Pixels At the beginning, coordinates of all drawings are specified in The device screen may have lower pixel resolution than the image rendered in previous step.īefore the image can be displayed, it must be downsampled (resized) to lower pixel resolution. (Image credit: TechRadar / Apple) Even if you know you want an iPhone, choosing the best iPhone can be easier said than done, as there are lots of options.
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