I use the library C3.js to build a graph on the page. The graph should occupy the entire width of the screen (because I hidden legend and axis), but chart zone always has an indent about 1% from window's width.
Can I make this?
Example
axis: {
y: {
show: false
},
x: {
show: false
}
Very Strange, you can put negative padding to get rid of it, I have no idea why its there either. you can add padding: { left: -20, right: -20 } to your chart object as quick hack around.
https://codepen.io/anon/pen/oBxPPL
c3js Padding Options
Related
When creating a bubble chart, such as https://www.amcharts.com/demos/bubble-chart/, is it possible to ensure the chart area/grid is square without specifying the chart div width and height? I'm hoping it could be somewhat responsive. No matter what the window size, the chart 's grid is square. It would need to take into consideration any axis labels.
I'm using React/TypeScript. Thanks!
After struggling with amchart settings to no avail, the following solution works. However, seems like there should be away to do in with chart settings.
This article explains how to maintain a specific aspect ratio for images. I simply adopted it for the bubble chart.
<div style={{ position: 'relative', paddingTop: '93%' }}>
<div id={chartId} style={{ position: 'absolute', top: 0, left: 0, height: '100%', width: '100%' }}></div>
</div>
Create a container div with relative positioning and the top padding to the correct aspect ratio
Create the chart div as a child with absolute positioning
Render the page
Take a screenshot, paste it in your favorite image editor
Measure the pixels
Recalculate the top padding
For my chart, which has axis text on the left and bottom, 93% was perfect. Now, no matter the page width or device, the grid is always square. HTH.
It seems like the height and fixedBarHeight cant both be used in a rowChart. Ids like to use fixedBarHeight so all the bars have the size I want, and the chart to be in a scrollable div so that the numbers of bars define the height of the chart. Is this possible?
#ialarmedalien made this block, which introduces a dc.axisChart to separate the axis of the row chart from the actual chart.
Then you can use conventional overflow-y: auto on the row chart div.
Here is a related issue on dc.js.
The dc.axis addon mentioned by #Gordon will solve the problem with the axis in a scrollable div, but not the problem asked. By default, the axis will only appear at the bottom, not before.
To solve this, add one div after the row chart div, this div will contain a copy of the axis.
<div id='row-axis'></div>
Then initialize this axis in the javascript
dc.axisChart('#row-axis')
.margins({ left: 10, top: 0, right: 10, bottom: 10 })
.height( 50 )
.width( 300 )
.dimension( dimension )
.group( group )
.elasticX( true );
Then change the margin of the row chart to 'glue' correctly with the axis. They also must have the same width.
.width(300)
.margins({ left: 10, top: 0, right: 10, bottom: 0 })
Then , in the css
div.dc-chart {
float: none;
}
Dont forget to include overflow-y: auto for the row style. Then you get:
This however doesnt solve the gap problem if your height is too large (or too small) compared to the fixedBarHeight.
But now your margin is zero, so the proper height is easy to calculate (but you must pass the gap value, which has 5 by default). Assuming N=chart.group().all().length, then do:
.fixedBarHeight(X)
.height(X*N + gap*(N+1))
Which will give you:
Worth mentioning that at this point you dont even need the fixedBarHeight anymore. Simply setting the height using XN + gap(N+1) will result in dc auto setting this value to X.
Based on: https://bl.ocks.org/ialarmedalien/0a4bf25ffc0fb96ae569a20f91957bc1
Just add style="overflow-y: auto; height: 300px;" in your rowchart div. It should work.
I'm using d3 and nvd3 to visualize some data in a graph. Now, no matter how many graphs i have, the legend above the (line)graph will always be shortened with trailing dots at the end.
Is there a way to adjust the legend in a fairly comfortable way? If so, how would i adress the legend and its properties?
I found the answer myself.
To keep the text from shortening, you can use chart.legend.align(false)
Thanks Reteras it did the trick for my PieChart, here are my legend chart options (typescript version)
Just change the margin to adjust the position
legend: {
align: false,
height: 200,
margin: {
right: 50,
top: 25,
left:0
}
}
legendPosition: 'right',
legend: {
maxKeyLength: 100,
padding: 40
}
This will set maximum text length of legend as 100 and ensures text cut off due to ellipsis.
I am developing an application on react-native. I have made a UI which works fine on iPhone 6 but not working fine on iPhone 5 or lower versions.
How should I fix this ?
You need to think about proportion when building your UI.
1, Use percentage(%) for width and aspectRatio for height, or vice versa.
container: {
width: "100%",
aspectRatio: 10 / 3, //height will be "30%" of your width
}
2, Use flex for the jobs percentage can't do. For example, if you have arbitrary size of items in a list and you want them to share equal sizes. Assign each of them with flex: 1
3, Use rem from EStyleSheet instead of pixels. rem is a scale fator. For example, if your rem is 2 and your “11rem” will become “11*2” = “22”. If we make rem proportion to the screen sizes, your UI will scale with any screen sizes.
//we define rem equals to the entireScreenWidth / 380
const entireScreenWidth = Dimensions.get('window').width;
EStyleSheet.build({$rem: entireScreenWidth / 380});
//how to use rem
container: {
width: "100%",
aspectRatio: 10 / 3, //height will be "30%"
padding: "8rem", //it'll scale depend on the screen sizes.
}
4, Use scrollView for contents that could potentially scale out of the boxes. For example, a TextView
5, Every time you think about using pixels, consider use rem in method 3.
For a detailed explanation, you can read the article here. 7 Tips to Develop React Native UIs For All Screen Sizes
Have you designed the app using fixed widths and heights? You should definitely use the capabilities of flexbox and try to avoid settings fixed sizes as much as possible. The flex property can be used to define how much space a <View /> should use releative to others, and the other properties on that page can be used to lay out elements in a flexible way that should give the desired results on a range of different screen sizes.
Sometimes, you may also need a <ScrollView />.
When you do need fixed sizes, you could use Dimensions.get('window').
You need to calculate sizes dynamically, relying on screen size.
import { Dimensions, StyleSheet } from 'react-native'
[...]
const { width, height } = Dimensions.get('window')
[...]
const styles = StyleSheet.create({
container: {
flex: 1.
flexDirection: 'column',
},
myView: {
width: width * 0.8, // 80% of screen's width
height: height * 0.2 // 20% of screen's height
}
})
If you are using TabbarIOS, remember that Dimensions.get('window') gives you the whole screen's height, this means that you'll have to take in account that the tabbar has fixed-height of 56.
So for example, when using TabbarIOS:
const WIDTH = Dimensions.get('window').width,
HEIGHT = Dimensions.get('window').height - 56
Then use WIDTH and HEIGHT as above.
Is it possible to zoom in and zoom out in a view just like using a double tap or pinch functionality? If so can we still get the same coordinates or different coordinates after zooming in?
If I have a view of height 100 and width 100 and when I click on the end of the view it obviously returns y-position as 100.
Another question I have is after zoom using a pinch or doubletap, will it return the end y co-ordinate as 100 or will it return a different value since we zoomed-in?
If this is not possible, is there an an alternative?
Thank you.
You can add the view to a scrollView. When you've done this you can zoom in and out by pinching.
var scrollView = Titanium.UI.createScrollView({
contentWidth: 'auto',
contentHeight: 'auto',
top: 0,
bottom: 0,
showVerticalScrollIndicator: true,
showHorizontalScrollIndicator: true,
//Here you can determine the max and min zoom scale
maxZoomScale: 100,
minZoomScale: 0.1,
//With this property you can set the default zoom
zoomScale: 1
});
After you create this you can add your view to it
scrollView.add(view)
Hope this helps!
Tjeu