【发布时间】：2014-03-14 19:26:49
【问题描述】：
当我的 SVG 在我的网页中时，我的 SVG 的渐变和标记定义似乎被覆盖了。页面上没有其他 SVG。
但是当我将 SVG 从页面中取出时，它看起来还不错。
这是本例中的 SVG。
<svg xmlns="http://www.w3.org/2000/svg" height="500" width="800">
<style>
svg .node.species {
stroke: #FFB800;
stroke-width: 3px;
size: 300px;
}
svg .node.reaction {
stroke: #8089F7;
opacity: 0;
stroke-width: 1.5px;
}
svg .link {
stroke: black;
stroke-width: 3px;
}
svg .link.modifier {
stroke-dasharray: 5, 5;
}
svg .node-label {
font-size: 14px;
font-family: Georgia;
font-weight: bolder;
text-anchor: middle;
dominant-baseline: middle;
}
/* svg .node.selected {
stroke: #FF0000;
}
svg .link.selected {
stroke: #FF0000;
}*/
svg marker {
overflow: visible;
}
svg .null-symbol {
fill: none;
stroke: black;
stroke-width: 3px;
}
</style>
<defs>
<linearGradient id="gradient">
<stop offset="5%" stop-color="#FFDC9E"></stop>
<stop offset="95%" stop-color="#FFF"></stop>
</linearGradient>
<linearGradient id="markerGradient">
<stop offset="5%" stop-color="rgb(97, 116, 255)"></stop>
<stop offset="95%" stop-color="#FFF"></stop>
</linearGradient>
<linearGradient id="reactionGradient">
<stop offset="5%" stop-color="#B0C0FF"></stop>
<stop offset="95%" stop-color="#FFF"></stop>
</linearGradient>
<marker case-sensitive="refX,refY" id="production" viewBox="0 0 10 10" markerWidth="10" markerHeight="10" orient="auto" refx="-2" refy="0" refX="-2" refY="0">
<path fill="url(#markerGradient)" stroke="#0013FF" transform="rotate(-90)" d="M0,2.0808957251439084L2.4028114141347543,-2.0808957251439084 -2.4028114141347543,-2.0808957251439084Z"></path>
</marker>
<marker case-sensitive="refX,refY" id="degradation" viewBox="0 0 10 10" markerWidth="10" markerHeight="10" orient="auto" refx="-2" refy="0" refX="-2" refY="0">
<path fill="url(#markerGradient)" stroke="#0013FF" transform="rotate(-90)" d="M0,2.0808957251439084L2.4028114141347543,-2.0808957251439084 -2.4028114141347543,-2.0808957251439084Z"></path>
</marker>
<marker case-sensitive="refX,refY" id="modifier" viewBox="0 0 10 10" markerWidth="30" markerHeight="30" orient="auto" refx="-0.4" refy="0" refX="-0.4" refY="0">
<path stroke="black" stroke-width="0.3" fill="none" d="M0,0.5641895835477563A0.5641895835477563,0.5641895835477563 0 1,1 0,-0.5641895835477563A0.5641895835477563,0.5641895835477563 0 1,1 0,0.5641895835477563Z"></path>
</marker>
</defs>
<g transform="translate(, )scale(1)">
<g>
<line class="reaction production link" marker-end="url(#production)" x1="449.9996697164325" y1="218.45791860388687" x2="451.42692033038736" y2="246.7481154723436">
</line><line class="reaction production link" marker-end="url(#production)" x1="399.21583821133174" y1="309.0153067725509" x2="345.33989421522693" y2="338.2824980727582">
</line>
</g>
<g>
<line class="reaction reactant link" x1="446.9075572254284" y1="157.1677217354301" x2="449.9996697164325" y2="218.45791860388687">
</line><line class="reaction reactant link" x1="453.0917822074366" y1="279.7481154723436" x2="399.21583821133174" y2="309.0153067725509">
</line>
</g>
<g>
</g>
<g draggable="" transform="translate(446.9075572254284,157.1677217354301)" style="position: relative; border: 1px solid red; background-color: rgb(211, 211, 211); cursor: pointer;">
<rect class="species node" fill="url(#gradient)" x="-50" y="-15" width="100" height="30" ry="15">
<title>ID: S1, Name: S1</title>
</rect>
<text class="node-label">S1</text>
</g><g draggable="" transform="translate(453.0917822074366,279.7481154723436)" style="position: relative; border: 1px solid red; background-color: rgb(211, 211, 211); cursor: pointer;">
<rect class="species node" fill="url(#gradient)" x="-50" y="-15" width="100" height="30" ry="15">
<title>ID: S2, Name: S2</title>
</rect>
<text class="node-label">S2</text>
</g><g draggable="" transform="translate(345.33989421522693,338.2824980727582)" style="position: relative; border: 1px solid red; background-color: rgb(211, 211, 211); cursor: pointer;">
<rect class="species node" fill="url(#gradient)" x="-50" y="-15" width="100" height="30" ry="15">
<title>ID: S3, Name: S3</title>
</rect>
<text class="node-label">S3</text>
</g>
<g draggable="" transform="translate(473.4770117242872,216.74146493626216)" style="position: relative; border: 1px solid red; background-color: rgb(211, 211, 211); cursor: pointer;">
<circle class="node reaction" fill="url(#reactionGradient)" r="5">
<title>ID: reaction1, Name: reaction1</title>
</circle>
<text class="node-label"></text>
</g><g draggable="" transform="translate(409.9633485910613,329.9478703486097)" style="position: relative; border: 1px solid red; background-color: rgb(211, 211, 211); cursor: pointer;">
<circle class="node reaction" fill="url(#reactionGradient)" r="5">
<title>ID: reaction2, Name: reaction2</title>
</circle>
<text class="node-label"></text>
</g>
</g>
</svg>
编辑 1
这是linearGradient元素的样式
编辑 2
defs 元素的样式
编辑 3
我发现当我删除 head 标记，然后重新应用它时，SVG 会正确呈现。很奇怪。
【问题讨论】：
-
我知道这样的行为。所以 linearGradient 元素具有“display:none”属性，那么使用这个渐变的填充就被破坏了。请检查渐变和标记元素的样式。
-
@defghi1977，我添加了
linearGradient的风格截图，我没有立即看到任何奇怪的东西。计算出的显示样式为inline。 -
当 linearGradient 的祖先元素具有 display:none 属性时会出现此行为。所以，如果 defs 元素有这个属性，linearGradient 也会被破坏。请亲眼检查css结构。
-
@defghi1977，我明白你的意思，当我在独立 SVG 上切换 display:none 时，我能够重现此行为。但奇怪的是，当我检查嵌入式 SVG 时，没有 display:none，当我手动将其切换为 display:inline 时，修复它也没有任何效果。关于在哪里寻找可能发生这种情况的任何想法？
-
似乎没有任何影响它的 CSS。但是我发现当我删除 HEAD 元素然后重新添加它时，SVG 显示正确呈现。
标签： svg