Open-High-Low-Close bars w/ X-Values less than chart.AxisX.Min stuck against left side of chart.

[User (Legacy)]

Hi,

I have an Open-High-Low-Close chart on which I am plotting only 72 bars on 

at any one time, using the Chart FX API and a for loop instead of 

databinding.

I start with a DataTable with more than 72 rows (say about 120).   I plot 

all the 120 points, but then choose a chart.AxisX.Min value that puts only 

the last 72 points on the chart's display area.  When I do this, the chart 

looks good with the exception of the Y-Axis on the left side of the chart. 

On it are printed all the Open-High-Low-Close bars that have X-Values less 

than the chart.AxisX.Min value.

As time goes on, I plot real-time Open-High-Low-Close bars on the right side 

of the chart, and increment the chart.AxisX.Min value by 1 to move the first 

point off of the chart.  When I do this, the point that I wanted to remove 

from view is now also squished up against the Y-Axis.  As time goes on, the 

Y-Axis collects more and more bars that I did not want to appear within 

view, until the Y-Axis is just one big block of color.

Is there a way that I can prevent the Open-High-Low-Close bars that have 

X-Values less than the chart.AxisX.Min from showing up as a mess against the 

Y-Axis?

I would like them to still exist in the chart's chart.Data collection 

without Chart.Hidden values if possible.

Thanks in advance for your help.

Brook

[Software FX]

A non X/Y chart such as bar or high-low-close, can not be clipped in the 

X-Axis by manipulating the X-Axis min and Max.

To show only a portion of the bars contained in the chart, you can use 

AxisX.SetScrollView.

As you add more points to the chart, you can use Axis>ScrollPosition to move 

the view.

-- 

Francisco Padron

www.chartfx.com

[User (Legacy)]

Hi,

Thank you for the quick response.

I made the chart.AxisX.Min = 0 and the chart.AxisX.Max = myLargestXValue + 

2, and then used chart.AxisX.SetScrollView(myLargestXValue + 2, 

myLargestXValue + 2 - 72) to scroll to only the last 70 or so points.

Unfortunately, the problem is still occurring.  All the Open-High-Low-Close 

bars whose X-Values are out of the range of visible X-Values are still all 

printed along the Y-Axis.

With scrolling, when the user scrolls left or right, the Open-High-Low-Close 

bars that were on the screen but just got scrolled off of the screen also 

get displayed up and down the Y-Axis, in a big vertical jumble.  If the 

values get scrolled off to the left, they appear on the Y-Axis on the left 

side, and if they get scrolled off to the right, they appear on the Y-Axis 

on the right side.

Is there a way that I can stop the chart from displaying all out of bounds 

Open-High-Low-Close bars on the left and right Y-Axes?

Thanks,

Brook

"SoftwareFX Support" <noreply@softwarefx.com> wrote in message 

news:4QEAH8dSGHA.3188@webserver3.softwarefx.com...

>A non X/Y chart such as bar or high-low-close, can not be clipped in the 

>X-Axis by manipulating the X-Axis min and Max.

>

> To show only a portion of the bars contained in the chart, you can use 

> AxisX.SetScrollView.

>

> As you add more points to the chart, you can use Axis>ScrollPosition to 

> move the view.

>

> -- 

> Francisco Padron

> www.chartfx.com

>

[Software FX]

I am unable to reproduce this problem. Please provide a test program that 

reproduces the problem.

-- 

Francisco Padron

www.chartfx.com