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Make example code consistent with the example text, use the same variable names, provide example code that will yield the result in the pics

Hinko Kočevar 2020-09-23 10:23:23 +02:00
parent 67e41faf15
commit 701e63aa56
1 changed files with 7 additions and 4 deletions
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11
Image-Loading-and-Displaying-Examples.md

@ -527,8 +527,11 @@ ImVec2 uv0 = ImVec2(10.0f/256.0f, 10.0f/256.0f);
// Normalized coordinates of pixel (110,210) in a 256x256 texture. // Normalized coordinates of pixel (110,210) in a 256x256 texture.
ImVec2 uv1 = ImVec2((10.0f+100.0f)/256.0f, (10.0f+200.0f)/256.0f); ImVec2 uv1 = ImVec2((10.0f+100.0f)/256.0f, (10.0f+200.0f)/256.0f);
// Display the 100x100 section starting at (10,10) ImGui::Text("uv0 = (%f, %f)", uv0.x, uv0.y);
ImGui::Image((void*)texture, ImVec2(100.0f, 100.0f), uv0, uv1); ImGui::Text("uv1 = (%f, %f)", uv1.x, uv1.y);
// Display the 100x200 section starting at (10,10)
ImGui::Image((void*)(intptr_t)my_image_texture, ImVec2(100.0f, 200.0f), uv0, uv1);
``` ```
![Using UV](https://user-images.githubusercontent.com/8225057/79073825-f9988280-7ce8-11ea-8596-1fd495720ffa.png) ![Using UV](https://user-images.githubusercontent.com/8225057/79073825-f9988280-7ce8-11ea-8596-1fd495720ffa.png)
@ -540,10 +543,10 @@ If you want to display the same image but scaled, keep the same UV coordinates b
```cpp ```cpp
// Normal size // Normal size
ImGui::Image((void*)texture, ImVec2(texture->Width, texture->Height), ImVec2(0.0f, 0.0f), ImVec2(1.0f, 1.0f)); ImGui::Image((void*)(intptr_t)my_image_texture, ImVec2(my_image_width, my_image_height), ImVec2(0.0f, 0.0f), ImVec2(1.0f, 1.0f));
// Half size, same contents // Half size, same contents
ImGui::Image((void*)texture, ImVec2(texture->Width*0.5f, texture->Height*0.5f), ImVec2(0.0f, 0.0f), ImVec2(1.0f, 1.0f)); ImGui::Image((void*)(intptr_t)my_image_texture, ImVec2(my_image_width*0.5f, my_image_height*0.5f), ImVec2(0.0f, 0.0f), ImVec2(1.0f, 1.0f));
``` ```
![Scaled](https://user-images.githubusercontent.com/8225057/79073856-25b40380-7ce9-11ea-91e4-754c3232fb58.png) ![Scaled](https://user-images.githubusercontent.com/8225057/79073856-25b40380-7ce9-11ea-91e4-754c3232fb58.png)