![]() On the Picture Format tab, select Color, and then select Set Transparent Color.Ĭlick the color in the picture or image that you want to make transparent. Select the picture for which you want to change the transparency of a color. In an electronic display, such as a web page, transparent areas are the same color as the background. Transparent areas in pictures are the same color as the paper on which they are printed. You can make one color in a picture transparent to hide part of the picture or create a layered effect. You can vary the percentage of transparency from 0 (fully opaque, the default setting) to 100% (fully transparent). Under Picture Transparency, drag the transparency slider rightward to set the exact percentage of transparency you want, or set a percentage value in the box. The Format Picture pane opens on the right side. Select one of the preset options, or select Picture Transparency Options at the bottom for more detailed choices. Ī gallery of preset transparency options for the picture appears. Select the Picture Format or Shape Format tab, and then select Transparency. Select the picture or object for which you want to change the transparency. You can make adjustments to the appearance of your picture by resizing your shape or by using the Offset settings below the transparency slider.Ĭhange the transparency of a picture or fill color Also, some pictures may not fit perfectly into certain shapes. If you change the original size ratio of your shape by dragging it, the picture you insert into the shape may be skewed. Or you may enter a number in the box next to the slider: 0 is fully opaque, the default setting and 100% is fully transparent. Move the Transparency slider in the Format Shape pane to adjust the picture. Select the picture and then select the Insert button. In the Insert Picture dialog box, locate the picture file that you want to insert. In the Format Shape pane, click the Fill icon, and then click Picture or texture fill.Ĭlick the File button. Right-click the shape again, and then click Format Shape. Click Format > Shape Outline > No Outline. Choose a shape from the gallery that opens.ĭraw the shape in your document, making it the same proportions as the picture you're about to add to it. So - it was interesting, but I have to go now and search for another workaround instead to display my transparent thumbnails on a non-bundled system.Select Insert > Shapes. Everytime I think, it works - the images on the other host have artefacts or turn black. Your library has a lot of useful functions. It was very interesting to learn a lot about the gd extension and about transparent gif Nice work. I tried a rewrite with this approach, fixed the 1bit-white-bug - and lost the transparency in thumbnails again (crop + resize = 2x truecolorimage = weird_imagecolortransparent). It also loses transparency with 1bit-transparent-white gif files. But it turns black when calling crop and resize in one run. It looks nice, crop and resize work on bundled and libgd. I found a very simple gd image class to crop and resize and I wanted to know, how the author fixed the gif transparency issue ( docs). The color palette was bigger with a few gray values. ![]() Not sure about this, but I realized a difference when rotating a black square with Illustrator and exporting it. So the position of the original transparent pixel moves, too. In addition to being able to store simple image data, GIF files (specifically GIF89a files) allow for some special features. They have no effect on gif filesĪ theory, why rotate leads to losing transparency: If you rotate a black rectangle, the edges turn gray and the whole color palette moves/gets bigger. Imagesavealpha and imagealphablending are for png files. without imagepalettetotruecolor detecting imagecolortransparent works, but all imagefilters don't work anymore.detecting the transparent color with imagecolortransparent doesn't work (correct) anymore.Gif files don't have alpha channels, they have one color in the palette, which is used as alpha. I digged again into the code and I want to share my conclusions and theories. But I'm very limited to a small set of test hosts.Ĭan you point me in a direction, please? Otherwise I would try to write a workaround for my specific needs and wait/hope for a fix in an upcoming PHP version with libgd 2.2.6. I can do some more tests with other functions, too. Adding a check for gif and png in the crop function would be easy. This is probably not enough to write a consistent version check. And I want to achieve this goal soon.Įverything I know about gd is what I read about it today and 4 days ago. ![]() The next steps would be to publish a new SimpleImage release 3.3.4 so Cockpit CMS can be updated via composer dependencies and I can use my favourite web hoster. My goal is to fix (all) transparent gif and png issues - at least in the crop function. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |