jqPlot:如何用几种不同的颜色为背景/网格的部分着色 [英] jqPlot : how to color parts of background / grid with several different colors
问题描述
我正在使用优秀的 可能对您有所帮助.
编辑
关于第二部分,您需要使用 verticalLine
并将其 x
值设置为毫秒,如此处所示.然后你需要担心选择合适的lineWidth
.
I am using the excellent jqPlot plug-in, and the only feature that I didn't find in the documentation is "how to color parts of background / grid with several different colors"
The x-axis units of my graphs are dates. I would like to highlight the weekend part (only) of the grid by changing the background grid color if it is possible.
Or anyone would have another idea?
Thanks
EDIT WITH FINAL ANSWER
Based on the Boro's suggestion, I developed a better way to highlight a part of the background using the "line" option instead of "verticalLine" option. The fact is that with "verticalLine", developers must deal with the line width.So, it is difficult to obtain what you need because the width of the line spreads from the centre of the line and not from a border.
"Line" option permits to set a start and end points to set the exact part of the background to highlight. The width parameter is still used to display the line as a column, but it spread horizontally, not vertically.
About the "lineWidth" properties, the value is defined in pixel. Therefore, you can set the value with the graph container height to be sure and set the "y" value of the "start" and "end" properties with an average of your series data or an approximate middle range of your yaxis.
I updated the Boro's fiddle here
grid:
{
drawGridLines: true, // wether to draw lines across the grid or not.
gridLineColor: '#cccccc', // Color of the grid lines.
backgroundColor: "#eee",
borderColor: '#999999', // CSS color spec for border around grid.
borderWidth: 2.0, // pixel width of border around grid.
shadow: true, // draw a shadow for grid.
shadowAngle: 45, // angle of the shadow. Clockwise from x axis.
shadowOffset: 1.5, // offset from the line of the shadow.
shadowWidth: 3, // width of the stroke for the shadow.
shadowDepth: 3, // Number of strokes to make when drawing shadow.
// Each stroke offset by shadowOffset from the last.
shadowAlpha: 0.07, // Opacity of the shadow
},
canvasOverlay: {
show: true,
objects:
[
{
line:
{
start : [new Date('2012-01-12').getTime(),20],
stop : [new Date('2012-01-13').getTime(),20],
lineWidth: 1000,
color: 'rgba(255, 0, 0,0.45)',
shadow: false,
lineCap : 'butt'
}
},
{
line:
{
start : [new Date('2012-01-13').getTime(),20],
stop : [new Date('2012-01-14').getTime(),20],
lineWidth: 1000,
color: 'rgba(255, 0, 0,0.45)',
shadow: false,
lineCap : 'butt'
}
}
]
}
I think the sample shown by @Katya in the code under my answer to a related problem maight be helpful for you.
EDIT
With regards to the second part you would need to use a verticalLine
and set its x
value as milliseconds, as presented here. Then you need to worry about selecting appropriate lineWidth
.
这篇关于jqPlot:如何用几种不同的颜色为背景/网格的部分着色的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!