BloodHound Interface

The BloodHound window is where you build and edit a system. It has four main areas.

Area	What it’s for
Menu	A ribbon menu. The Main tab has file management; the Logic tab has everything for building a system and moving around the Logic Board.
Solvers panel and Snippet Library	The left side: the list of the system’s solvers, or your library of snippets. Switch with the tabs at the bottom.
Logic Board	The center, where systems are built. Tabs along the top switch between Logic Templates, each an independent system (for example entry signals, exit signals, or a variant for a more volatile instrument).
Property Inspector	The right side: the settings of the node or chart selected on the Logic Board or in the Solvers panel.

Closing the window (the X at the top right) also saves the system to its file. So does anything that closes the window for you, such as a chart reload, so changes aren’t lost. See AutoSave.

Video: an introduction to the interface.

Menu area

Main tab

Button	What it does
File section	Open, Save, Save As, or clear the window to start a new system. Like a spreadsheet, a BloodHound system is saved to a file (a template) so you can use it again after NinjaTrader restarts.
Undo / Redo	Undoes or redoes changes on the Logic Board and in the Property Inspector (not file changes).
Notes	Opens or closes a Notes area for a description of the system or reminders.
Snippets	Shows or hides the Snippet Library panel on the left.
Help	Links to training documents and videos, license management, and a manual check for updates (BloodHound also checks automatically every few days).

Logic tab

Everything for creating, editing and moving around a system. Click a section image to see it in full.

Logic Template

Also available by right-clicking a Logic Template tab.

Button	What it does
New Logic	Adds a Logic Template.
Rename	Renames the current Logic Template.
Copy Logic	Copies the visible Logic Template. The copy uses the same solvers, to save calculation: changing a solver in the copy also changes it in the original.
Delete Logic	Deletes the visible Logic Template. Undo brings it back.

Create

Adds nodes to the center of the Logic Board (a new solver is also added to the Solvers panel). Also available by right-clicking the Logic Board.

Button	What it does
Solvers	All the solvers.
Function	All the function nodes.
Logic	All the logic nodes.
Chart	Adds a secondary Data Series (chart data) to the Solvers panel, for a multi-timeframe system.

Edit

Also available by right-clicking selected nodes on the Logic Board.

Button	What it does
Undo / Redo	Reverses or restores a change, such as deleting the wrong solver or changing a node’s settings.
Copy	Copies the selected nodes to the Windows clipboard, as XML.
Paste	Pastes copied nodes onto the visible Logic Board (this one or another).
Delete	Deletes selected function and logic nodes. A solver node is only removed from the Logic Board; to delete the solver itself, delete it in the Solvers panel.

Add Text

Adds a text box to the Logic Board for notes. Edit its text and colors in the Property Inspector.

Snippets

Snippets are reusable nodes or groups of nodes, such as a favorite filter, that you can drop into any system. Snippets shows or hides the Snippet Library; Add Snippet makes a snippet from the selected nodes (disabled when nothing is selected).

Align

Button	What it does
Snapping	Turns snapping on or off.
Align Right	Lines up the selected nodes on their right edge (the output connector). Needs two or more nodes selected.
Align Top	Lines up the selected nodes on their top edge. Needs two or more nodes selected.

Navigation

Button	What it does
Pan	Turns pan mode on or off: dragging moves the view. Holding down the mouse wheel pans too.
Center View	With nothing selected: fits all nodes in view. With nodes selected: centers and zooms to them; click again to fit all nodes.
Zoom slider	Zooms out (−) and in (+), for mice without a scroll wheel.

Options

Overrides the confidence thresholds for this Logic Template, so each Logic Template can have its own (useful for fuzzy logic systems). See BloodHound output. The same settings are on the Result node’s Options tab.

Share

Opens the Upload and Share window, with text ready to paste into a forum to share screenshots of your system and its template file.

Solvers panel

The master list of the system’s solvers, and where Charts (secondary timeframes) are managed. If the Snippet Library is showing, click the Solvers tab at the bottom.

Button	What it does
Add	Adds a solver to the Solvers panel only; drag it onto the Logic Board to use it.
Delete	Deletes the selected solver or Chart.
Duplicate	Copies the selected solver or Chart.
Up / Down	Moves the selected solver to the Chart above or below (there must be at least one added Chart). To reorder solvers within a Chart, drag them.
Add Chart	Adds a secondary Data Series for a multi-timeframe or multi-instrument system. Solvers moved under a Chart run their indicators and read prices on that Chart’s data.

Snippet Library

Your snippets and the buttons to manage them. If the Solvers panel is showing, click the Snippet Library tab at the bottom. Double-click a snippet’s name to rename it.

Each snippet is two files in the NinjaTrader folder: an XML file of the nodes (a mini BloodHound file) and an image for the library. You can copy them to other computers or share them with friends.

Button	What it does
Add Snippet	Makes a snippet from the selected nodes, ready to be named. Disabled when nothing is selected.
Remove Snippet	Deletes the selected snippets. This can’t be undone.
Refresh	Rescans the snippet folder, for example after moving or renaming files in File Explorer.
Insert Snippet	Inserts the selected snippet into the visible Logic Board. You can also drag a snippet to place it exactly.
Snippet Folder	Opens the snippet folder in File Explorer.

Video: where snippet files are kept, to copy them to another computer or share them.

Logic Board

Where systems are built (formerly called the System Design Area). Each system, or each variant of one, lives in its own Logic Template, shown as tabs along the top. Click a tab to switch; drag tabs to reorder them.

Color	Meaning
Green tab and green Result node	The Logic Template being calculated and shown on the chart.
Red tab and gray Result node	The Logic Template you’re viewing, which isn’t the one shown on the chart.

Each Logic Template has exactly one Result node; it can’t be deleted.

Property Inspector

Shows the settings of the selected node. The yellow bar at the top shows its name, where you can rename it. There are usually three tabs:

Tab	What it has
Properties	The node’s essential settings.
Options	Secondary settings shared by all nodes, such as Weight and Description.
Help	This website’s page for the selected node, inside BloodHound (needs NinjaTrader 8.0.26.0 or newer).

AutoSave and semi-automatic loading

BloodHound helps preserve your work automatically, but there are situations to be aware of. Please read this section carefully.

Feature	How it works
AutoSave	The system is saved to its file every time the BloodHound window closes, unless another BloodHound is saving to the same file at the same time. Anything that reloads or refreshes the chart closes the window, and so saves.
Semi-automatic loading	BloodHound remembers the file’s timestamp whenever it loads or saves. If the file has been saved by another BloodHound since, a chart reload loads the newer file. In practice this only happens when the same file is open in several BloodHounds and one of them saves changes.
Newer version notification	When you open the window and the file is newer than the copy in memory, BloodHound offers to load it. It can occasionally appear when nothing significant changed.