Line Chart in Apex

Is it possible to change color of line graph based on a condition? I want to show red if the line passes above 90 percent and then show green when the line drops below 90 percent. Can someone help me on this?

I'm sorry, my instructions were not very clear about posting code. Lets try that again. First off, I mistakenly instructed you to use a [ character when the correct character is {. I evidently need to learn how to use the shift key properly. The best way to post code is by enclosing it in {code } tags. So, when you post, it will look like {code }Your XML here{code } (again, no spaces in the tags). The output will look like:
Your XML hereMore info about this can be found: http://wikis.sun.com/display/Forums/Forums+FAQ
Next, onto the real question at hand. It appears that you are getting close. Your page item P50_DATA should define each data point in the chart. It should begin with a <data> tag and have at least one <series> tags, with points defined. Your current PLSQL output is an example of one of the points that would belong in the series. If you turn on DEBUG, a link will appear next to your chart labeled 'Show XML'. click that link to see the entire XML that is rendering your chart. Once you have that, post it here if you need help reading it.
Getting back to your PLSQL output, in the code you will need to determine which style each point will use. I assume this will be based on the Y value. An example of how to do this: <point name="GREEN" y="1" style="style1"></point>
<point name="RED" y="97" style="style2"></point> As mentioned earlier, you will need more than just the example code given above in page item P50_DATA. You will need the entire XML string from the beginning <DATA> tag to the </DATA> tag.
Hope this helps
Austin

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Hi,
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Hi Thorsten,
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Message was edited by:
cd

Line chart with 2 different y axis

hi,
i have a question on line chart in apex. i'm using apex 4.2. is it possible to generate a line chart with 2 different y axis? here's a sample data to illustrates what i'd like the chart to look like.
date price percent
1/1 1 100
1/2 2 90
1/3 3 80
1/4 4 70
the x-axis will be the date column. the left y-axis would be the price column. and the right y-axis would be the percent column.
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jim

You beat me to it.
One of the problems I'm having is that the begining and ending point(s) coincide. So, instead of two completely separate lines, I have an area bounded by the series 1 line on top and the series 2 line on the bottom. Since the points overlay, the values of those points also display one on top of the other. I'll have to see if there is a way to separate the series. I've had 3 separate series before, but never with two y-axis.
Regards,
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LeoVic - Hello,
Can you make an example on apex.oracle.com to show us what you have so far?
Here's an example of mine -- but with a line chart. http://apex.oracle.com/pls/apex/f?p=43250:3 Login: Dever PW: Ima9Dever
And then tell us what you would want to be different.
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Hello everyone,
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How can i debug ? Is anything helpful reported in the iAS logfiles?

APEX multi series line chart with different markers for each series

I am using APEX 4.0 and trying to create a multi-series line chart that will have a different for each series.
Does anyone know how to accomplish this?
Edited by: user4635837 on Apr 19, 2011 7:22 AM

Hello -
It is possible to do.
Another user in this forum has written some code snippets to assist in creating your own custom XML for charting. That reference can be found http://apex.oracle.com/pls/apex/f?p=36648:30:418355095936797::NO:::
Look this over and it should get you moving in the right direction.
What you are trying to do isn't terribly difficult. In fact, I did it fairly easily as can be seen http://apex.oracle.com/pls/otn/f?p=28155:4:362637005964920:::::
First, create a Hidden page item.
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Then, create your custom XML for your chart. Replace the #DATA# tag in the custom XML with your hidden page item.
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Hint Values on Line Chart

When you setup a line chart, the LABEL portion of the SQL query becomes the X axis value on the line chart. When there are multiple series on a line chart, each series is its own distinct line. If the series has a LABEL that is not yet on the chart, it adds that label to the x axis at the end of the axis. If the new series has a LABEL that is already on the chart, then it places the Value on that existing place on the x-axis. This Label is also used in the Hint portion of the chart.
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Austin

Andy -
I need to thank you for the direction on the substitution variables reference. That will be a major help.
However, i must correct a statement (underlining is mine)
So, if you switch to Custom XML and find the <tooltip> tag and add {%SeriesName} after the existing {%Name} entry, you end up with the _"day of the month" (which is your value)_ and the Series Name value, which is January - so, "1 January"This is a common misconception that the numeric value on the x axis represent the "day of the month" , when in fact it does not. You logically cannot use the day of the month for this type of axis. Why not? It is because weekends are excluded. So, one month may begin on a Friday. If that were the case then the 2nd of the month would be a Saturday, which would work for a single series of data. But what about when you add in the next month and it begins on a Tuesday. Well then, if you use the day of the month as the value, the 2nd day of the second series actually gets plotted after all the days of the first month.
The solution is that you have to generate a common arbitrary scale for all series of data. When you do that, you lose the date values.
I have tried to illustrate all of this by adding to the existing examples in the link provided above. Some other odd behaviors of using the day of the month as the x-axis value can be seen as well. I have also implemented the suggestion of adding the {%SeriesName} tag to the Hint via the custom xml.
Austin

Change Color from grid lines in Flash 2D Line Chart

Hi,
does anybody know how to change the color from the grid lines in 2D Line Chart?
The color is always black (000000), I will use gray (CCCCCC).
I can use a custom XML. Can you give me an example please???
Where can I read something about the possible XML-Tags in Custom XML for Charts?
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Simona

Simona,
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Here a newbie with apex...
Created a flash line chart with as source the following sql statement:
select null link, year, sum(total_cost) from cost
group by year
a chart has been created with a single line. i wanted every year on an own line.
The way i could do this is with multiple series like:
select null link, year, sum(total_cost) from cost
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But this not a good solition, cause now i've to add every year a new serie
hope to get some help from here... txn in advanced.

tnx for your reply...
I will explain myself more by a picture of the wanted result, see below:
[Click here for the example image|http://img44.imageshack.us/img44/3444/grapha.jpg]
In your reply you wright you think i can create the graph with pl/sql process. After seeing my example you still think that's needed?
Hope you or some else can help... tnx in advanced.
greetings

2D Line Chart question

I have Apex 3.1 . I have created a 2D Line chart with for different series (so there are 4 lines on one chart). I also have a Legend on the left side next to the chart to label whatr each line is for. In my query for those lines I have the Name for the Legend as all CAPS but it shows up as first letter capital and the rest lower case. Is there a way to force it to all upper case?
The second question I have is that underneath the legend I would like to have some type of text box were I can write a couple lines to help explain what is going on in the graph. Is there a way to do that?

You basically have only a couple of options here:
First, turn off the labels and possibly turn them into Hints. They wouldn't show on the chart, but when the user held over the data point, a tool tip would appear showing them the valuable.
Second, adjust elements of the chart. What you are really looking at here is that your data set is causing this specific issue and not the charting engine or anything like that. You could try to manually change the axis max and min to get more spacing, or you could adjust the height of the chart to get more spacing, but this may not be a viable option. You could have one set of labels above the plotted line and another set of labels below the plotted line that way the values do not overlap with anything. However, from a conceptual standpoint, it will be difficult to determine in code which line should have values above and which should have values below. When your data set changes, you may end up with labels in the wrong place if you hard code where they are at.
The current XML reference can be found at: http://www.anychart.com/products/anychart/docs/xmlReference/index.html however, that is for anychart 5. I'm looking for the link to the earlier versions...
You can use this to create custom xml where you can adjust the position of the labels.
Finally, you do not want expand the height of the chart between two points on the Y axis. That would change the structure of the chart and the visual properties of the chart and the shape of the data would be askew. You cannot do this for good reason. You can though use a logrithmic scale. In most cases though, this is not a practical solution. Data sets need to have very specific characteristics in order to be able to merit a logrithmic scale. Most queries require a simple linear scale.
Austin

Line chart legend titles - fixed length?

Hi
I use a number of line charts wherein I specify the title of the individual series via variables &var1. and so on.
When I use more than 3 series in the chart, the 4th and following(up to 6) series titles are shown in '2nd' column' in the legend title/color area of the chart.
However it seems 2nd column always start a fixed number of px to the right of the 1st column no matter how long the titles of the legends in the first column is.
The result is that legend titles and colors are written on top of each other and it looks very messy.
Can I get around that somehow? Is there a fixed length defined somehow?
I thought I could just pad blanks to the legend titles in the 1st columns, but no. I tried in a number of ways doing that via &nbsp, and &#160 and so on - but no effect.
Anyone? any ideas?
Best regards,
Jesper G

I've the same problem with APEX 2.2, does someone has an issue?

How to display a goal line in a Flash 2D Line Chart?

Hello,
I am using Apex 3.0.1 and have a Flash 2d Line Chart displaying a ratio that varies from 1.0 to 1.6 for every month for a year. I need to draw a goal line at 1.2 to show the goal for the ratio. Also, I have grid lines enabled for the y-axis.
Any pointers/tips on how to accomplish displaying this goal line would be really useful.
Thanks and Regards,
Dev

I'm having the same problem!
APEX is relatively new to me. CUSTOM XML for tweaking charts is even more recent. I tried to get a goal line to work in a line chart as you described but I have had no success. I really require a target/goal/reference line in a vertical bar chart but getting it to work in a line chart would be a welcome first step.
I have tried the following 2 samples of code without success:
<objects>
<line value='94' text='Target' text_position='right' color='0xFF3300' size='1' alpha='100'/>
</objects>
and
<objects>
<trend start_value='94' end_value='94' start_argument='' end_argument='' value='' color='0xFF3300' thickness='1' alpha='100'/>
</objects>
==> in the following blocks of the CUSTOM XML:
<chart .....</chart>
<chart..<line_chart .....</line_chart>..</chart>
<workspace> .. <chart_area .....</chart_area> ..</workspace>
<workspace> .. <y_axis .....</y_axis> ..</workspace>
<workspace> .. <grid> ..<values .....</values ..</grid> ..</workspace>
<workspace> .. <grid> .....</grid> ..</workspace>
Any idea where I am going wrong or what could be missing? Maybe I'm not putting the <objects> parameters in the correct place in the code?
System Info:
Product Build: 3.0.1.00.07
NLS_CHARACTERSET: WE8MSWIN1252
DAD CHARACTERSET: UTF-8
JOB_QUEUE_PROCESSES: 10
Database Version Information
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Prod
PL/SQL Release 10.2.0.3.0 - Production
CORE 10.2.0.3.0 Production
TNS for 32-bit Windows: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
Thanks for any help!
Lawrence

Line Chart in Apex

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