Formatting Axis Labels Based On Axis Label Values?
May 22, 2012
I have a P/L chart which has a left scale (Y axis) which starts from a negative value. I want to format the axis labels (the major tick mark labels) so that the negative ones are red.
Something like;
If cht.ChartAreas(chtarea).AxisX.MajorTickMark.Value < 0 Then
cht.ChartAreas(chtarea).AxisY.LabelStyle.Font = New Font("Verdana", 9.0F, FontStyle.Bold, Color.Red)
[Code]....
Of course that doesn't work since MajorTickMark doesn't have a value property. How does one make this work?
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Aug 2, 2011
I'm seeing a strange problem with the labels on the X axis of my charts. I've setup two chart areas and aligned them (which displays fine) and the user can manipulate the chart by selecting different date resolutions (Year, Month, Day, Week, Hour) and different time periods.
The issue I'm seeing is that if a user selects say Months as the date resolution the X axis label display is inconsistent. If a fairly broad range for the dates is selected the X axis displays absolutely fine but as the date range narrows the X axis starts to duplicate labels ( please see the attached images). The second Image had a date range of 1st of May to 1st of August and as you can see the labels are duplicated. This is my first go with the chart control so I could be missing something basic. [Code]
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Sep 16, 2009
I am having some major problems with the code in VBA and recording a macro didn't get me anywhere nor is the VBA help file. I have to have it so that I can input a values for the x axis rotation and the y axis rotation so that my 3d surface graph will rotate whatever values I input, the 3d surface graph will rotate those degrees. I also have to have a method for having the default rotation. I was also wondering how to put scroll bars for the x and y rotation. The only other thing I am having trouble with is having an input to check box for right angle axes. So far I have two cells for entering the x rotation value and the y rotation value. I also already have my 3d surface graph.
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Aug 14, 2011
I am having trouble in getting the coordinates of x-axis and y-axis in low level ouse hook...all I am getting is values in x-axis listbox and in y-axis listbox I am getting zeros......why? and my second problem is I am calling the setcursorpos
function in a for loop because I want to automate mouse movements and clicks, but setcursorpos function is not working , maybe because I am getting the coordinates wrong.....here is my code
low level mouse hook
Public Class MouseAutomating
Inherits HotKey
Public lstbox As New ListBox
[code]...
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Feb 23, 2011
I am trying to loop through my datatable column sdescr and use the text in the columns as the labels of my x axis, but it isnt working i am getting this error
Value of type
'System.Collections.Generic.List(Of
String)' cannot be converted to
[code].....
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Jan 21, 2012
I have inserted a simple chart (Line type) on a form in VB 2010.I reversed the values of the Y axis in order to achieve a water depth graphic.(I used the property: IsReversed)The X- axis seems to be moved to the top of the chart !How can I move the X axis labels to the bottom ??
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Apr 17, 2012
I want to display the labels at the left axis and bottom axis of a line graph to the right and top axis instead of the left and the bottom axis.
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Jun 23, 2009
I am in the process of automating a PowerPoint presentation that shows graphs that evaluate the Metrics of the organization. I have successfully created the graphs, with one exception. The dates I submit to be used in the X axis always changes format once it gets into the PPT presentation. The graph template that I clear and write over has the date format as "Jan-07". The new date data is now being written as "7-Jan". I tried submitting the data as a string, but no matter which way I formatted it ("January 2007, Jan 07, 07 Jan, etc") it would always change it to "7-Jan". Have any of you encountered this problem? Do you know how I can change the formats of dates in a PowerPoint MSGraph that is automated through VB.Net?
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Oct 2, 2007
how to change the orientation of the x axis labels in the zedgraph control?
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Feb 1, 2012
i'm having a problem with AxisX interval labels. I want my AxisX length to be exactly one minute and labels showing every 5 second. So it should be 12 labels all the time. But after that minute passes, I'm getting 13th, than 14th label and so on.
Imports System.Windows.Forms.DataVisualization.Charting
Public Class Form1
Private minValue, maxValue As Date
Private rand As New Random()
[code]....
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Jan 8, 2009
I have the smallest dataset in the world that simply consists of a month (text) and and amount. I want to produce a chart showing the month along the y-axis and the value up the x-axis. How do I do it? I have dragged the chart control onto the report page and populated the dataset. The chart shows but nothing like what I would expect. Just to make it simple I populated the dataset with an amount equivalent to the month number so it should show as 1 in January, 2 in Feb etc...However no matter where I drag the dataset's column names I don't get what I want. Where am I going wrong?
I use this simple loop to populate the dataset:
dsSales.Tables("Sales").Clear()
For i As Integer = 1 To 12
dsSales.Tables("Sales").Rows.Add(MonthName(i), i)
Next
ReportViewer1.RefreshReport()
I get this as a result:
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Apr 27, 2010
the vb.net/ vb2008( i'm using vb2008) to draw a graph based on x and y axis.. and find the peaks in that graph. Urgent needed
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Oct 28, 2009
I am working on simple handover process from one mobile station to other. I got three proposed results service disruption time, network entry time, connection set up time. I also have the result of these three as by using some conventional way and got improved these three delay results by proposed way. Results are store in textboxes. Now i want to show graphically. E.g. I want to show conventional service disruption time on x axis and proposed service disruption time on y axis or vice versa. Let suppose I want to have a scale on axes from 1 to 3000 milliseconds. Then I want to show how purposed scheme is better. I am using VB.Net 2008.I have created chart. I also studied MS chart for windows forms samples environment. Also applied different chart properties like titles, series and others, But I am not able to make x and y axes scales. How to get values on the axes and how to generate graph? [code]
A chart element with the name '0' could not be found in the 'ChartAreaCollection'.i also tried using ChartAreas(Default") but i am getting same idea.I don't get what for this chartAreas value in parenthesis is used.
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Dec 16, 2011
In my vb.net project, I use zedgraph to draw figures. I find that the following properties work well to zoom figure on the center of mouse.
[Code]...
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Jul 22, 2009
I have used MSChart control and created line graph. when i move my mouse over the graph, i want to display X-axis value and Y-axis value in another label above the graph.
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Mar 3, 2010
I'm importing some data from MySQL into a VB.NET application with .NET charts. At the moment, the chart is plotting points by date, which means that when you zoom in, each major tick mark simply displays the date.It would be better to change these dates to times (hours) when one zooms in.Presumably there's a parameter to do this, but I can't find it.
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Feb 1, 2011
I'm returning a database query into a List object and using that list object to fill the X and Y axes of my chart as seen below. (_runData is a "List(of DatabaseTableName)" style Object filled with the results of my query.
Primary_Chart.Series(0).Points.DataBindXY(_runData, "DateTime", _runData, "UPPER_PRESSURE")
My Datetime field is returning as a Serial Number (i.e. 40116.76111) so I want to format the X Axis to display the field more readably. Enter my problem code.
[code].....
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Mar 12, 2010
I'm having problem with MS Chart chart type column. If there are only 9 bar in the chart like the following picture, then the axis-x label show up properly.
However, there are more than 9 bars bar the chart, the axis-x label wont show up properly, some of them just dissappear.
Here's my mark-up for the chart:
<asp:Chart ID="chtNBAChampionships" runat="server">
<Series>
<asp:Series Name="Championships" YValueType="Int32" Palette="Berry"
[Code]....
I don't know it works with only 9 bars? Is there any way to make the chart work properly? Also, if possible, how to make each bar have different color.
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Jan 29, 2011
I have created some 3d models(VB) for display in a WPF 3d Viewport and would like to rotate them. I would like to rotate them about an axis of rotation defined by a line through two 3d points. All the examples seem to rotate about one of X Y or Z axes and are not helpful for a more general approach. The angle of rotation is easily found. My maths is a bit rusty now so is there a function that would calculate the axis easily ?
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Jul 27, 2009
I have 2 columns of data B and C.i want to set the data under column B as x-axis and C as y-axis correspondingly to plot a x-y graph.[code]...
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May 13, 2011
I am using the MSChart object in VB2010. Live futures data is put into an array, then added one point at a time to a line chart (Chart1, one line only) using (1):
frmChart2.Chart1.Series("data").Points.AddXY(sec10, spreadarray(0, sec10))
All fine and good. However, by the time a few thousand data points have come through, its getting hard to see the detail in the chart, therefore I reset the x-axis so that I just see the last 200 (say) points, using (2):
Chart1.ChartAreas("ChartArea1").AxisX.Minimum = frmPrices.sec10 - CLng(lstChartpts.Text)
...where frmPrices.sec10 is the total number of data points, and CLng(lstChartpts.Text) is the number of points required. So if I have 1000 pts, and I wish to see 200 displayed, the AxisX minimum in this case is 1000 - 200 = 800. Points then start to build again one at a time. I am happy with this except that the Y-axis scaling is still taking into consideration all 1000 data values, so need to reset the Yaxis maximum and minimum. No problem (3):
Chart1.ChartAreas("ChartArea1").AxisY.Maximum = (max of the last 200 values + a small increment)
Chart1.ChartAreas("ChartArea1").AxisY.Minimum = (min of the last 200 values - a small increment)
The problem comes in when I want to change the number of points to display back to "ALL". I could re-write the code to use the max and min of all values, as in (3), but I'd rather just reset the yaxis back to the autoscaling that the chart started out with. I've looked everywhere for a property or method to do this! Or is there a way to autoscale the yaxis according to only the displayed values?
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Nov 2, 2009
Ok, so I am attempting to try my hand in directinput, I got the code up and running within VB.net, it recognizes the controller and almost all buttons work, but for some reason 2 or 3 of the axis do not work on each controller.I have tried this with an xbox360 wireless controller and a Logitech wired controller (ps2 style) they both show the correct amount of axis on each controller, but do not work correctly.[code]I have looked everywhere for my problem, but the issue is, I am not exactly sure what the problem is to search for.if anyone also knows how to access the "X" (power) button on the xbox controller, that would be awesome as well, because I want it to interact with my program!and if you don't have a wireless receiver a wired one is exactly the same...
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Dec 20, 2009
I would like to display the word " Volts(V) " in the Y axis, just like the one you see from the attached image. But that image is crop from elsewhere and placed into a picturebox, which to me, doesnt look nice. I would prefer if the words are type in manually into a label and then rotate.
I did some research through the forums and websites, and came across this: [URL]
from there, i have a brief idea on it , tried out but it didnt work though. Or i may not have done it correctly.
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Jul 9, 2009
The Matrix Transformation (1,0,0,-1,0,0) flips the points of a path around the X-Axis and (-1,0,0,1,0,0) flips around the Y-Axis. My question is, how (or can you) flip around another point.For instance, say I have a GraphicsPath.PathPoints that consist of 10,20 and 15,40 and I want the result to be 10,40 and 15,20 how would I do that or is it even possible.
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Apr 29, 2010
in runtime I can see that X-axis limits of my chart (minimum and maximum) are automatically changed as I insert points. That's nice. So I came to an idea to change that minimum and maximum values. It worked. But as soon as I wanted to return (at runtime) to auto I came across some problems. First I discovered that when auto scaling is activated this values are:
[Code]...
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Apr 18, 2009
way to switch the X and Y axis?
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Apr 18, 2011
i am trying to get the angle of a line in relation to the x axis. The line is being drawn in a picturebox. So its the Upper right quadrant of the cartesian plane ... but its flipped over the x axis.im using this code
a=pt(1).x
b=pt(1).y
c=pt(2).x
d=pt(2).y
z=math.atan2((c-a),(d-b))*(180/math.pi)
The issue is that the line im drawing is almost parallel to the x axis but its returning a value of roughly 90 degrees .It seems like it is giving me the angle in relation to the y axis, but not being super good at the math myself im not exactly sure what to change here.
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Feb 21, 2012
I have Date and Time available in xaxis() array format. I would like to assign this to x axis of the MS Chart. My all other data is in datatable format and already have assigned series to this values.Chart1.Series(0).Points.DataBindXY(xaxis, yaxis).. but it gives me error as i do not have valid values for y axis.
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Dec 28, 2009
I am busy with a routine that will draw a bar chart.The X-axis is from 0 -100, no problem. The problem is the Y-axis.it will range from 0 to whatever the highest y-value will be.
My problem is that the y-axis should still be divided into 10 intervals, and the lenght of my y-axis should be the same in my picture box.I am using an array to fill the values, chartdata (0-9). It gets 10 values from the program. the values are 0 -10, 11 -20,21-30....91-100 . here is the code. It is working, but my Y-axis is messed up. Printing the labels of the y-axis is a problem.
Private Sub PictureBox1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
Dim chartData() As Single = {mark0, mark10, mark20, mark30, mark40, mark50, mark60, mark70, mark80, mark90}[code]......\vb
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Jun 8, 2011
Using the System.Windows.Forms.DataVisualization.Charting objects/namespace, am having problems getting by chart to sort axis of dates properly.My data looks like this (dates in US format):
Product Quantity SaleDate
A -- 2 -- 5/1/2011
B -- 1 -- 5/1/2011
C -- 1 -- 1/1/2011
B -- 2 -- 2/1/2011
I'm creating a stacked column graph like this, where dv is a dataview of the datatable:
vb.net
chSales.DataBindCrossTable(dv, "Product", "SaleDate", "Quantity", "") chSales.AlignDataPointsByAxisLabel() For Each cs As Series In chSales.Series cs.ChartType = SeriesChartType.StackedColumn cs.YValueType = ChartValueType.Int32 cs.XValueType = ChartValueType.DateNext
So this produces a stacked column graph with 2 A's, 1 B in May 11, etc But the date order is Feb, Jan, May, regardless of how I sort the datatable provided to the chart.
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