I am trying to do a collaboration diagram in umlet, but there isn't a palette element to do so. So I thought I'd create one. Easier said than done! I am able to define the class element of the diagram, but am unable to define the arrows that define the flow of the collaboration.
I've tried adding a drawline statement to the code window, but it is undefined in umlet custom element implementation.
//Modify the code below to define the element's behavior.
//
//Example: Change the line
// y += printCenter(textline,y);
//to
// y += 2*printCenter(textline,y);
//and observe the element preview.
int y=textHeight();
drawRectangle(0,0,100,35);
drawRectangle(0,150,100,35);
//drawline(10,35,10,115);
for(String textline : textlines) {
y += printCenter(textline,y);
}
The expected result should be two class elements and two arrows denoting the flow of the collaboration.
I've gotten this far, but I am unable to save it to the custom elements palette.
Welllll, my bad! It turns out that you can use the regular palette elements to construct the diagram and then save it to umlet's palettes directory.
Related
I have a composite graph of two line charts. For one of them i'm attempting to apply a custom color range based on the value of each point on the line:
.colors(['rgb(215,48,39)','rgb(244,109,67)','rgb(253,174,97)','rgb(254,224,144)'])
.colorDomain ([0,3])
.colorAccessor (d,i) ->
if d.points[i].data.value.avg > 50
return 0
else
return 3
The problem is I keep getting only one color for the entire graph... Not to mention d returns as an object of all the points instead of a single point... (maybe a hint of the problem?)
Am i doing something wrong here and/or is there an easier way to do this?
You didn't get an answer so I'll try to look into it with you.
First, I created a fiddle at http://jsfiddle.net/djmartin_umich/4ZwaG/.
.colors( ['rgb(215,48,39)', 'rgb(244,109,67)', 'rgb(253,174,97)', 'rgb(254,224,144)' ] )
.colorDomain ([0,3])
.colorAccessor(function(d, i){
if(d[i] && d[i].data.value > 150)
return 3;
else if(d.data.value > 150)
return 2;
else return 1;
});
I had to play around with the color accessor to get it to stop throwing errors. The method was called twice with an array of elements and twice for each element in the array (24 times total).
Once I got it compiling I inspected the chart and saw this:
The chart has a path element that defines the line and a bunch of circles that define the points on the line. The points are part of the tool-tip that display when you hover over the different points on the line.
The path seems to be colored by the value returned when the array of values was passed in and the hover-points on the line are each colored by the value returned for that element.
So the path of the line is given a single color. It sounds like your expectation is for different portions of the line to be colored differently based on their y-value, but this is not how the line is rendered.
The article at http://www.d3noob.org/2013/01/applying-colour-gradient-to-graph-line.html describes how you can use gradients to achieve the effect you desire. I believe the author is "hard-coding" the start and stop points for each gradient, so it won't get you all the way to your answer but it should help you get started.
I hope this helps!
-DJ
I am trying to create a generic style for all rows in my data table. I have been looking around and there seems to be a function I can use named rownum.
I tired to create the style like this...
row["__rownum"] Less than 0
then colour = Red
But this is not right. Can someone tell me the right way to do this so I can apply the style to multiple cells in my table.
Also where can i find documentation on what sort of functions like this are available?
thanks
I know two ways how you can specify conditional styles in BIRT:
You can write an "onRender" eventHandler (either in Java or JavaScript) for your row. In JavaScript it could looks as follow:
if (row["__rownum"] % 2 == 0) {
this.getStyle().backgroundColor = "red";
} else {
this.getStyle().color = "red";
}
Or create a new BIRT style with a highlight-rule like follows:
row["__rownum"] % 2 equals to 0 then
Set Color or whatever or apply another style
Instead of creating a new style, that you will have to assign to target elements, you can also modify one of the predefined styles, if you find a one matching your targets.
Both EventHandler and Styles can be assigned to various element: Cells, Rows, Tables, Report...
Links you may find helpful:
https://www.eclipse.org/birt/phoenix/deploy/reportScripting.php
http://help.eclipse.org/helios/index.jsp?topic=%2Forg.eclipse.birt.doc.isv%2Fmodel%2Fapi%2Forg%2Feclipse%2Fbirt%2Freport%2Fmodel%2Fapi%2FElementFactory.html
BIRT: Alternating row Color in a table group
I'd like to implement a map that zooms in on an area similar to Mike's click-zoom-example http://bl.ocks.org/mbostock/2206590
In fact I have this working fine already. My problem is that I can't rely on the click event to implement the zoom — the zoom will be triggered by another event (a link). So when I get to this part of Mike's code:
function clicked(d) {
var x, y, k;
if (d && centered !== d) {
var centroid = path.centroid(d);
...
I'm a bit of a loss as I don't have 'd'. So, I'm assuming that I can instead, manually pass 'd' to my click function when I call it. But how do I actually select the feature (which is what 'd' represents) I want from the map?
To be a bit more concrete, I have a map of the world. The paths within the SVG group contain class information (e.g. the one for France looks like):
<path class="subunit FXX FRA" id="FXX" data-subunit="FXX" data-countryName="France" data-countryCode="FRA" d="M153.88838704622088,519........"></path>
How would I pass the 'France object' to the clicked(d) function? Or is there another approach altogether that I should be trying.
Any tips or help greatly appreciated.
You can use D3's select for this purpose:
d3.select(".FRA").each(function(d) {
// same code as inside clicked
});
Get the data associated with the France object:
d3.select('.FXX.FRA').datum()
And pass it to clicked:
clicked(d3.select('.FXX.FRA').datum())
I am trying to use d3 to animate text using an svg text with d3 transitions. I have it working as desired for a single string.
I want to iterate through strings from an array of json objects.
I can do this as well.
All the painting and transitions work great. Problem is, they all happen at once, and appear piled up on each other, and all animate all at once.
I have tried putting them in a setTimeout() to get them to appear sequentially.
Still does not work.
for ( i in haikuStr ) {
if( i !=0 ){
//Make it wait if an appropriate time it is not the first one
setTimeout( function() {
showText();
}, 11000 * i );
} else {
//if i=0, don't make folks wait
showText();
}
}
The showText() function is the full create container -> finish transitions.
I use 11000 * i to ensure that >2 iterations have 11 additional seconds per i.
I have spent quite a bit of time reading and trying to figure out how to get the loop to pause before cycling through to paint the next line.
Any thoughts or ideas would be appreciated.
The un-timed example is here, if you wish to see the text jumble up:
http://www.mysalmagundi.com/js/svg-d3-no-timing.html
Have you read Thinking with Joins? Or some of the other introductory D3 tutorials, such as those by Scott Murray? Or Three Little Circles, or Working with Selections? I ask because your showText function is misusing data joins; it creates text elements for every element in the global haikuStr array:
var text = haikuContainer.selectAll("text")
.data(haikuStr)
.html(String)
.enter().append("text");
And all your text elements are overlapping because you set them to have the same y-attribute:
var thisHaiku = text
.attr("x", -800)
.attr("y", 120)
(Also, that selection.html call is a no-op because the update selection is guaranteed to be empty, since you just created haikuContainer it is guaranteed to not have any descendant text elements. And thisHaiku is the same value as the var text, because when method chaining selection.attr and similar methods return the current selection; so there’s no reason to create a separate var. Also, you shouldn’t use a for-in loop to iterate over arrays.)
If you wait 11 seconds, you’ll see the second SVG appear, but because of your data join as described above, it has the same overlapping text content.
If you just want to show a single piece of text, then pass that string to your showText function (e.g., showText("hello")). Then, since you’re just creating individual elements, just selection.append them rather than using a data-join. You only need the data-join when you’re creating (or updating or removing) a variable number of elements based on data; in this case it looks like you’re trying to just create a single element.
I have a selection of elements that I'm trying to filter down based on a particular style value (I want just the ones with opacity=1). I'm looking at the documentation for selection.filter along with selection.select and selection.selectAll as well but I'm confused about the correct usage with a function argument.
"select" indicates that it selects the first matching element (as expected) but then the example in the filter documentation shows it being used with a function to select the "odd" elements while maintaining the index.
"selectAll" indicates that you can return an array of elements, but that the function argument is invoked one-by-one in the usual way for each element in the original selection. I'm having difficulty imagining a use case for this.
I guess what I'm wondering is whether there are any tutorials or examples around that discuss the correct usage of these functions?
Thanks,
scott
If you want to reduce a selection to a subset of selected elements, use filter. If you want to select descendent elements, use select or selectAll.
Most often, filter is used to filter elements based on data or index. However, you can access the selected element as this within the filter function. Thus, if you have some elements selected, and you want to reduce that selection to only those elements with an opacity of 1, you can say:
var opaque = selection.filter(function() {
return this.style.opacity == 1;
});
To be safe, you might prefer to look at the computed style rather than the element's style properties. This way, if the opacity is inherited from a stylesheet, you'll get the correct value; otherwise, when a style is inherited this.style.opacity will be the empty string.
var opaque = selection.filter(function() {
return window.getComputedStyle(this, null).getPropertyValue("opacity") == 1;
});
Or equivalently, select the node and use selection.style:
var opaque = selection.filter(function() {
return d3.select(this).style("opacity") == 1;
});
You might find it easier if you filter by data or by class, instead of by computed style property. For example, if you set a class on your nodes, you can filter a selection by class instead:
var opaque = selection.filter(".opaque");