private static CameraProperty ReadFloatProperty(PYLON_DEVICE_HANDLE deviceHandle, string symbol)
{
CameraProperty p = new CameraProperty();
p.Identifier = symbol;
NODEMAP_HANDLE nodeMapHandle = Pylon.DeviceGetNodeMap(deviceHandle);
NODE_HANDLE nodeHandle = GenApi.NodeMapGetNode(nodeMapHandle, symbol);
if (!nodeHandle.IsValid)
{
return(p);
}
EGenApiAccessMode accessMode = GenApi.NodeGetAccessMode(nodeHandle);
if (accessMode == EGenApiAccessMode._UndefinedAccesMode || accessMode == EGenApiAccessMode.NA ||
accessMode == EGenApiAccessMode.NI || accessMode == EGenApiAccessMode.WO)
{
return(p);
}
p.Supported = true;
p.ReadOnly = accessMode != EGenApiAccessMode.RW;
EGenApiNodeType type = GenApi.NodeGetType(nodeHandle);
if (type != EGenApiNodeType.FloatNode)
{
return(p);
}
p.Type = CameraPropertyType.Float;
double min = GenApi.FloatGetMin(nodeHandle);
double max = GenApi.FloatGetMax(nodeHandle);
EGenApiRepresentation repr = GenApi.FloatGetRepresentation(nodeHandle);
double currentValue = GenApi.FloatGetValue(nodeHandle);
// We don't support a dedicated control for "pure numbers" just use the regular slider.
if (repr == EGenApiRepresentation.PureNumber)
{
repr = EGenApiRepresentation.Linear;
}
// Fix values that should be log.
double range = Math.Log(max - min, 10);
if (range > 4 && repr == EGenApiRepresentation.Linear)
{
repr = EGenApiRepresentation.Logarithmic;
}
p.Minimum = min.ToString(CultureInfo.InvariantCulture);
p.Maximum = max.ToString(CultureInfo.InvariantCulture);
p.Representation = ConvertRepresentation(repr);
p.CurrentValue = currentValue.ToString(CultureInfo.InvariantCulture);
return(p);
}
/* Some features are floating point features. This function illustrates how to set and get floating
* point parameters. */
private static void demonstrateFloatFeature(PYLON_DEVICE_HANDLE hDev)
{
NODEMAP_HANDLE hNodeMap;
NODE_HANDLE hNode;
string featureName = "Gamma"; /* The name of the feature used. */
bool bval; /* Is the feature available? */
double min, max, value; /* Value range and current value. */
EGenApiNodeType nodeType;
/* Get a handle for the device's node map. */
hNodeMap = Pylon.DeviceGetNodeMap(hDev);
/* Look up the feature node. */
hNode = GenApi.NodeMapGetNode(hNodeMap, featureName);
if (!hNode.IsValid)
{
Console.WriteLine("There is no feature named '" + featureName + "'.");
return;
}
/* We want a float feature node. */
nodeType = GenApi.NodeGetType(hNode);
if (EGenApiNodeType.FloatNode != nodeType)
{
Console.WriteLine("'" + featureName + "' is not an floating-point feature.");
return;
}
bval = GenApi.NodeIsReadable(hNode);
if (bval)
{
/* Query the value range and the current value. */
min = GenApi.FloatGetMin(hNode);
max = GenApi.FloatGetMax(hNode);
value = GenApi.FloatGetValue(hNode);
Console.WriteLine("{0}: min = {1}, max = {2}, value = {3}", featureName, min, max, value);
/* Set a new value. */
bval = GenApi.NodeIsWritable(hNode);
if (bval)
{
value = 0.5 * (min + max);
Console.WriteLine("Setting {0} to {1}", featureName, value);
GenApi.FloatSetValue(hNode, value);
}
else
{
Console.WriteLine("Cannot set value for feature '{0}' - node not writable.", featureName);
}
}
else
{
Console.WriteLine("Cannot read feature '{0}' - node not readable.", featureName);
}
}
public static void Write(PYLON_DEVICE_HANDLE deviceHandle, CameraProperty property)
{
if (!property.Supported || string.IsNullOrEmpty(property.Identifier) || !deviceHandle.IsValid)
{
return;
}
// If "auto" flag is OFF we should write it first. On some cameras the value is not writable until the corresponding auto flag is off.
// If it's ON (continuous), it doesn't matter as our value will be overwritten soon anyway.
if (!string.IsNullOrEmpty(property.AutomaticIdentifier))
{
string enumValue = property.Automatic ? "Continuous" : "Off";
PylonHelper.WriteEnum(deviceHandle, property.AutomaticIdentifier, enumValue);
}
NODEMAP_HANDLE nodeMapHandle = Pylon.DeviceGetNodeMap(deviceHandle);
NODE_HANDLE nodeHandle = GenApi.NodeMapGetNode(nodeMapHandle, property.Identifier);
if (!nodeHandle.IsValid)
{
return;
}
EGenApiAccessMode accessMode = GenApi.NodeGetAccessMode(nodeHandle);
if (accessMode != EGenApiAccessMode.RW)
{
if (!string.IsNullOrEmpty(property.AutomaticIdentifier) && !property.Automatic)
{
log.ErrorFormat("Error while writing Basler Pylon GenICam property {0}.", property.Identifier);
log.ErrorFormat("The property is not writable.");
}
return;
}
try
{
switch (property.Type)
{
case CameraPropertyType.Integer:
{
long value = long.Parse(property.CurrentValue, CultureInfo.InvariantCulture);
long step = long.Parse(property.Step, CultureInfo.InvariantCulture);
long remainder = value % step;
if (remainder > 0)
{
value = value - remainder;
}
GenApi.IntegerSetValue(nodeHandle, value);
break;
}
case CameraPropertyType.Float:
{
double max = GenApi.FloatGetMax(nodeHandle);
double min = GenApi.FloatGetMin(nodeHandle);
double value = double.Parse(property.CurrentValue, CultureInfo.InvariantCulture);
value = Math.Min(Math.Max(value, min), max);
GenApi.FloatSetValue(nodeHandle, value);
break;
}
case CameraPropertyType.Boolean:
{
bool value = bool.Parse(property.CurrentValue);
GenApi.BooleanSetValue(nodeHandle, value);
break;
}
default:
break;
}
}
catch
{
log.ErrorFormat("Error while writing Basler Pylon GenICam property {0}.", property.Identifier);
}
}
/* Get the current values from the node and display them. */
private void UpdateValues()
{
try {
if (m_hNode.IsValid)
{
var nodeType = GenApi.NodeGetType(m_hNode);
/* Check if proper node type. */
if (GenApi.NodeGetType(m_hNode) == EGenApiNodeType.FloatNode)
{
/* Get the values. */
bool writable = GenApi.NodeIsWritable(m_hNode);
maxValue = checked ((float)GenApi.FloatGetMax(m_hNode));
minValue = checked ((float)GenApi.FloatGetMin(m_hNode));
float val = checked ((float)GenApi.FloatGetValue(m_hNode));
int inc = 50;
int max = 1000;
int min = 0;
float valueOfThousand = InverseLerp(maxValue, minValue, val) * 1000;
int value = (int)valueOfThousand;
if (name == "ExposureTimeRaw")
{
max = MaximumExposure;
if (val > max)
{
val = max;
}
}
/* Update the slider. */
slider.Minimum = min;
slider.Maximum = max;
slider.Value = value;
slider.SmallChange = inc;
slider.TickFrequency = (max - min + 5) / 10;
labelCurrentValue.Maximum = max;
labelCurrentValue.Minimum = min;
/* Update the values. */
labelMin.Text = "" + min;
labelMax.Text = "" + max;
labelCurrentValue.Text = "" + value;
/* Update accessibility. */
slider.Enabled = writable;
labelMin.Enabled = writable;
labelMax.Enabled = writable;
labelName.Enabled = writable;
labelCurrentValue.Enabled = writable;
return;
}
}
}
catch {
/* If errors occurred disable the control. */
}
//Reset ();
}
/// <summary>
/// Write generic property with optional auto flag.
/// </summary>
private static void WriteProperty(PYLON_DEVICE_HANDLE deviceHandle, CameraProperty property)
{
if (property.ReadOnly)
{
return;
}
NODEMAP_HANDLE nodeMapHandle = Pylon.DeviceGetNodeMap(deviceHandle);
// Switch OFF the auto flag if needed, to be able to write the main property.
if (!string.IsNullOrEmpty(property.AutomaticIdentifier))
{
NODE_HANDLE nodeHandleAuto = GenApi.NodeMapGetNode(nodeMapHandle, property.AutomaticIdentifier);
if (nodeHandleAuto.IsValid)
{
bool writeable = GenApi.NodeIsWritable(nodeHandleAuto);
bool currentAuto = ReadAuto(nodeHandleAuto, property.AutomaticIdentifier);
if (writeable && property.CanBeAutomatic && currentAuto && !property.Automatic)
{
WriteAuto(nodeHandleAuto, property.AutomaticIdentifier, false);
}
}
}
// At this point the auto flag is off. Write the main property.
NODE_HANDLE nodeHandle = GenApi.NodeMapGetNode(nodeMapHandle, property.Identifier);
if (!nodeHandle.IsValid)
{
return;
}
EGenApiAccessMode accessMode = GenApi.NodeGetAccessMode(nodeHandle);
if (accessMode != EGenApiAccessMode.RW)
{
return;
}
try
{
switch (property.Type)
{
case CameraPropertyType.Integer:
{
long value = long.Parse(property.CurrentValue, CultureInfo.InvariantCulture);
long min = GenApi.IntegerGetMin(nodeHandle);
long max = GenApi.IntegerGetMax(nodeHandle);
long step = GenApi.IntegerGetInc(nodeHandle);
value = FixValue(value, min, max, step);
GenApi.IntegerSetValue(nodeHandle, value);
break;
}
case CameraPropertyType.Float:
{
double value = double.Parse(property.CurrentValue, CultureInfo.InvariantCulture);
double min = GenApi.FloatGetMin(nodeHandle);
double max = GenApi.FloatGetMax(nodeHandle);
value = FixValue(value, min, max);
GenApi.FloatSetValue(nodeHandle, value);
break;
}
case CameraPropertyType.Boolean:
{
bool value = bool.Parse(property.CurrentValue);
GenApi.BooleanSetValue(nodeHandle, value);
break;
}
default:
break;
}
}
catch
{
log.ErrorFormat("Error while writing Basler Pylon GenICam property {0}.", property.Identifier);
}
// Finally, switch ON the auto flag if needed.
if (!string.IsNullOrEmpty(property.AutomaticIdentifier))
{
NODE_HANDLE nodeHandleAuto = GenApi.NodeMapGetNode(nodeMapHandle, property.AutomaticIdentifier);
if (nodeHandleAuto.IsValid && GenApi.NodeIsWritable(nodeHandleAuto) && property.CanBeAutomatic && property.Automatic)
{
WriteAuto(nodeHandleAuto, property.AutomaticIdentifier, true);
}
}
}
private static CameraProperty ReadFramerate(PYLON_DEVICE_HANDLE deviceHandle, Dictionary <string, CameraProperty> properties)
{
CameraProperty p = new CameraProperty();
p.Identifier = "AcquisitionFrameRate";
p.Supported = false;
p.Type = CameraPropertyType.Float;
NODEMAP_HANDLE nodeMapHandle = Pylon.DeviceGetNodeMap(deviceHandle);
NODE_HANDLE nodeHandle = GenApi.NodeMapGetNode(nodeMapHandle, p.Identifier);
if (!nodeHandle.IsValid)
{
p.Identifier = "AcquisitionFrameRateAbs";
nodeHandle = GenApi.NodeMapGetNode(nodeMapHandle, p.Identifier);
if (!nodeHandle.IsValid)
{
return(p);
}
}
EGenApiAccessMode accessMode = GenApi.NodeGetAccessMode(nodeHandle);
if (accessMode == EGenApiAccessMode._UndefinedAccesMode || accessMode == EGenApiAccessMode.NA ||
accessMode == EGenApiAccessMode.NI || accessMode == EGenApiAccessMode.WO)
{
log.WarnFormat("Could not read Basler property {0}: Access mode not supported. (The property is not readable).", p.Identifier);
return(p);
}
EGenApiNodeType type = GenApi.NodeGetType(nodeHandle);
if (type != EGenApiNodeType.FloatNode)
{
log.WarnFormat("Could not read Basler property {0}: the node is of the wrong type. Expected: Float. Received:{1}", p.Identifier, type.ToString());
return(p);
}
p.ReadOnly = false;
p.Supported = true;
double currentValue = GenApi.FloatGetValue(nodeHandle);
double min = GenApi.FloatGetMin(nodeHandle);
double max = GenApi.FloatGetMax(nodeHandle);
double step = 1.0;
min = Math.Max(1.0, min);
p.Minimum = min.ToString(CultureInfo.InvariantCulture);
p.Maximum = max.ToString(CultureInfo.InvariantCulture);
p.CurrentValue = currentValue.ToString(CultureInfo.InvariantCulture);
p.Step = step.ToString(CultureInfo.InvariantCulture);
// Fix values that should be log.
double range = Math.Log10(max) - Math.Log10(min);
p.Representation = (range >= 4) ? CameraPropertyRepresentation.LogarithmicSlider : CameraPropertyRepresentation.LinearSlider;
// AcquisitionFrameRateEnable=false: the framerate is automatically set to the max value possible.
// AcquisitionFrameRateEnable=true: use the custom framerate set by the user in AcquisitionFrameRate.
string autoIdentifier = "AcquisitionFrameRateEnable";
p.AutomaticIdentifier = autoIdentifier;
NODE_HANDLE nodeHandleAuto = GenApi.NodeMapGetNode(nodeMapHandle, autoIdentifier);
p.CanBeAutomatic = nodeHandleAuto.IsValid && GenApi.NodeIsWritable(nodeHandleAuto);
p.Automatic = false;
if (p.CanBeAutomatic)
{
string currentAutoValue = GenApi.BooleanGetValue(nodeHandleAuto).ToString(CultureInfo.InvariantCulture).ToLower();
p.Automatic = currentAutoValue == GetAutoTrue(autoIdentifier);
}
if (properties != null)
{
properties.Add("framerate", p);
}
return(p);
}
